A 3D pen is only as good as what you feed it. Run out of plastic mid-project and a kid’s weekend craft turns into a stalled afternoon, which is why having the right refill pack on hand matters more than most people expect. This guide sorts through ten solid options, from bulk PLA spools for standard pens to low-heat strands made specifically for kids’ 3Doodler Start+ models. Whether you’re restocking a classroom craft bin or topping up your own desk setup, there’s a pack here that fits.
The Shortlist At A Glance
fuentai PLA Refills 1.75mm 20 Colors 328 Ft
3Doodler Start Filament Refill Bag x250 Strands
dikale 3D Pen Filament 160 Feet 16 Colors
Kovpnor PCL Refill for 3Doodler Start+ 22 Colors
ORKAN 300x Refills 15 Rainbow Colors
ORKAN 300x Refills Jungle Mix for 3Doodler Start+
YEETIN 3D Pen Filament Refills 15 Colors 240 Ft
SCRIB3D Pen Filament Refills 20 Colors 320 Feet
DO3D 1.75mm PLA Sample Pack 15 Colors 150 Ft
MIKA3D 32 Colors PLA Refills with Finger Caps
More Details On Our Top Picks
Most refill packs give you around ten feet per color, which disappears fast once a project gets ambitious. The fuentai bundle stretches that to roughly sixteen feet per strand across twenty colors, adding up to 328 feet of 1.75mm PLA total. For anyone running a busy craft table, that’s weeks of drawing before a restock.
The plastic is bubble-free PLA, meaning fewer clogs mid-line, a frustration owners of cheaper refills report often. One honest caveat: colors are pulled from a pool of forty options, so two packs may not match exactly.
Strong Points
- About 16 feet per color means long projects without constant strand swaps
- Bubble-free extrusion helps keep lines smooth and nozzles clear
- Twenty-shade assortment covers primaries, pastels, and darks in one box
- Works with any standard 1.75mm filament pen
Things To Consider
- Color selection is randomized per batch, so replacements may not match your first set
- Store unused strands sealed away from humidity to avoid brittleness over time
Who It Suits Best
Classrooms, after-school programs, and families who burn through refills quickly will get the most from this bulk format.
A Better Fit Elsewhere
Shoppers wanting guided projects alongside their plastic should look at the dikale 160-foot set instead, since it bundles stencils and eBooks.
This is the official-brand plastic for the 3Doodler Start+, and that matters more than it sounds. The Start+ runs at low heat so children can touch the plastic right after it exits the nozzle, and this refill is formulated for exactly that system. You get 250 strands yielding over 1,250 feet of extruded material, sized for ages six and up.
In practice, parents tend to notice the strands feed reliably without jamming, which keeps young artists focused on building rather than troubleshooting. The trade-off is price per foot compared to generic packs, though the peace of mind is real.
What We Like
- Low-heat formula stays safe for small hands during use
- Adheres to paper, fabric, and many household surfaces for mixed-media crafts
- 250-strand volume outlasts most starter-pack supplies by months
Small Caveats
- Only works with 3Doodler Start-series pens, so check your model before ordering
- Costs more per foot than third-party alternatives like the Kovpnor pack later in this list
Right Fit For
Families with a Start+ pen and kids aged six to twelve who doodle weekly will find this the simplest, safest choice.
Swap It Out When
If budget drives the decision, the Kovpnor 22-color PCL refill covers the same pen at a friendlier cost per strand.
Where the fuentai pack wins on raw yardage, the dikale set wins on guidance. Alongside 160 feet of 1.75mm PLA split into sixteen colors, you get 250 stencils and eBooks, which gives beginners actual shapes to trace instead of staring at blank paper. That’s a meaningful difference for a child’s first week with a new pen.
The palette mixes neutrals, brights, and metallic finishes including wood and silver tones, handy for adding detail work to finished pieces. Compatibility covers MYNT3D, SCRIB3D, and PIKA3D Super and Pro pens.
Highlights
- 250 stencils plus eBooks turn refills into structured learning projects
- Metallic and wood-tone shades enable realistic detailing
- Ten feet per color suits short, varied practice sessions
Points To Note
- Total footage is half the fuentai bundle, so heavy users will restock sooner
- Not compatible with 3Doodler Start+ pens, which need thicker PCL strands
Best Suited To
First-time pen owners aged roughly eight and up who want project ideas built into the purchase.
Reach For A Different Pick When
Experienced doodlers who already know their technique should skip the extras and grab the higher-yardage fuentai or SCRIB3D packs.
PCL stands for polycaprolactone, a low-melting-point plastic that stays cool enough to handle immediately after printing. That’s the whole reason kids’ pens use it, and this Kovpnor pack delivers 110 strands of 2.5mm-thick PCL across 22 colors, cut to fit the 3Doodler Start+ feed mechanism precisely.
The thicker diameter matters: Start+ pens won’t accept standard 1.75mm filament, so buying the wrong size is the most common mistake in this category. With 22 shades versus the official bag’s smaller mix, variety-minded households get more range here, assuming the fit holds up as well as the spec sheet suggests.
Upsides
- Plastic cools fast enough to touch right after extrusion
- 22-color spread beats most Start+ refill options on variety
- Correct 2.5mm thickness feeds without modification
Softer Spots
- Exclusively fits the Start+ pen, useless for every other model in this roundup
- Third-party strands occasionally vary slightly in stiffness, based on widely reported owner feedback
Made For
Parents stocking a Start+ pen who want maximum color choice without paying brand-name prices.
Consider Something Else When
Anyone prioritizing guaranteed factory-spec feeding may prefer the official 3Doodler refill bag reviewed earlier.
Here’s a spec that changes how far a pack goes: each ORKAN strand expands up to six times its original length when drawn through a 3Doodler Start+. Three hundred strands suddenly behave like a much larger supply, which explains why this rainbow edition has become popular with families going through plastic quickly.
The fifteen-shade mix leans bright, spanning bold primaries through softer pastels, twenty strands per color. Compared with the jungle-themed sibling pack below, this one favors cheerful, high-energy hues suited to toys, jewelry, and decorative pieces.
Bright Spots
- Six-times expansion stretches each strand considerably further
- 300-strand count supports group activities and siblings sharing one pen
- Pastel-to-primary range suits playful, colorful builds
Minor Gripes
- Start+ compatibility only, so verify your pen model first
- Expanded plastic can feel slightly less dense in finished structures than standard PLA
Who Will Love This
Households with several young creators working from a single Start+ pen will appreciate the sheer strand count.
Another Choice May Suit
Nature-themed builders, dinosaur fans, and plant-drawing enthusiasts will prefer the jungle palette version covered next.
Same engine as the rainbow pack above, different paint job. This jungle edition keeps the 300-strand count, fifteen colors, twenty strands per shade, and the six-times expansion behavior, then swaps the palette toward greens, earth tones, and animal-friendly hues. Kids drawing forests, bugs, and creatures get colors that actually match the subject.
Choosing between the two ORKAN packs comes down purely to theme, since performance characteristics are identical. In our view, that’s a refreshing kind of decision to make, one driven by taste rather than specs.
Plus Points
- Earth-tone palette matches animals, plants, and outdoor scenes naturally
- Identical expansion ratio makes the supply last longer than strand count suggests
- Feeds cleanly through the Start+ low-heat system
Room For Improvement
- Limited appeal outside nature-themed projects compared with broader palettes
- Strands need dry storage, as PCL can soften in warm environments
Whose Shelf It Belongs On
Young builders obsessed with animals, dinosaurs, and garden scenes will reach for these shades constantly.
Look Elsewhere When
Projects needing metallics or translucent effects call for the MIKA3D 32-color set near the end of this list.
YEETIN splits the difference between sample packs and bulk bundles: 240 total feet across fifteen colors, with sixteen feet per shade. That per-color length is the standout figure, giving you roughly sixty percent more of each hue than typical ten-foot refills before switching strands.
The 1.75mm PLA fits SCRIB3D P1 and ADV, MYNT3D Basic, Super, and Pro, plus PIKA3D Super and Pro pens. Just as useful, the listing spells out incompatible Junior models and 3Doodler pens plainly, which saves an annoying return trip.
Reasons To Buy
- 16 feet per color supports longer single-hue sections without splices
- Clear compatibility chart prevents wrong-model purchases
- 240-foot total sits comfortably between starter and bulk sizes
Trade Offs
- Fifteen colors trails the twenty-shade sets from fuentai and SCRIB3D
- Absolutely incompatible with 3Doodler Create, Start, and Junior series pens
Who Should Grab It
Intermediate doodlers practicing daily with a MYNT3D or SCRIB3D pen benefit most from the longer per-color runs.
Where A Sibling Pick Shines
Shoppers wanting maximum color breadth at similar total footage should compare the SCRIB3D 320-foot pack directly below.
Brand-name backing plus broad compatibility is a rare combination in this category. SCRIB3D’s own refills run 1.75mm PLA across twenty colors and 320 feet, matching the fuentai bundle’s yardage while carrying the pedigree of a company that also manufactures pens. Any 3D pen accepting 1.75mm plastic works here, with the notable exception of 3Doodler Create+ models.
For multi-pen households, say a SCRIB3D for one child and a MYNT3D for another, one supply covers both. Owners commonly report consistent strand thickness, which translates to steadier flow and fewer mid-draw hiccups.
Standout Traits
- Universal 1.75mm fit spans SCRIB3D, PIKA3D, MYNT3D, and most other pens
- Twenty-color assortment balances basics with fun accent shades
- 320 feet rivals the largest bulk options in this roundup
- Same-brand refills remove guesswork for SCRIB3D pen owners
Honest Caveats
- Won’t work with 3Doodler Create+ pens despite the broad otherwise-compatibility
- Keep strands in their packaging between sessions to prevent dust buildup in the feed path
At A Glance
The Right Fit
Multi-brand households and SCRIB3D pen owners wanting dependable, high-volume refills are the natural match.
Not Your Match When
Start+ pen owners need thick PCL strands instead, making the Kovpnor or official 3Doodler bags the correct route.
Not everyone needs 300-plus feet on day one. The DO3D sample pack offers 150 feet across fifteen bright colors at ten feet each, sized for testing whether 3D drawing sticks as a hobby before committing to bulk purchases. The plastic is fresh pure-material PLA with tight diameter control, which shows up as smoother lines and fewer bubbles.
The palette covers everyday essentials: black, white, red, blues, greens, pinks, and purples. Compared with the dikale set, you lose the stencils and eBooks but gain a leaner, lower-commitment entry point.
Positives
- Small footprint makes trying the hobby inexpensive
- Precisely controlled 1.75mm diameter feeds consistently
- Fifteen essential shades cover most beginner projects
Worth Noting
- Ten feet per color runs out quickly on larger builds
- No bonus materials like stencils or guides included
Perfect Match For
Cautious first-timers and gift-givers testing interest before investing in bigger supplies.
Where Another Pick Suits Better
Once the hobby sticks, upgrading to the fuentai 328-foot bundle delivers double the footage with more colors.
Detail artists, this one’s for you. MIKA3D packs 32 distinct colors into 320 feet of 1.75mm PLA, and the mix is where it earns its badge: four metallic shades, ten translucent clears, and eighteen core solids. Layering a clear tone over a solid creates depth effects plain filament simply can’t match, useful for stained-glass-style art and gemstone accents.
The four included finger caps protect fingertips during long sessions, a small touch that frequent doodlers genuinely appreciate. Note the usual limits: no 3Doodler support, and ten feet per color means heavy-use shades deplete faster than in the YEETIN pack.
Best Bits
- Metallic and translucent shades enable layered, light-catching effects
- 32-color depth exceeds every other pack in this lineup
- Finger caps reduce fatigue during extended drawing
- Standard 1.75mm sizing fits most pens and many desktop printers
Areas To Watch
- Thin per-color allocation requires careful planning on large monochrome sections
- Incompatible with all 3Doodler pen models
Quick Facts
Built With In Mind
Hobbyists producing display-quality art pieces with layered color effects will squeeze the most value from this set.
Wrong Turns To Avoid
Volume-focused users burning single colors quickly should choose the fuentai bundle’s sixteen-feet-per-color format instead.
What Matters Most Before Choosing 3d Pen Filaments
Match The Diameter To Your Pen
This is the mistake that causes most returns. Standard adult pens such as MYNT3D, SCRIB3D, and PIKA3D models take 1.75mm PLA, while kids’ 3Doodler Start+ pens require chunkier 2.5mm PCL strands. Buying the wrong size means a drawer full of unusable plastic, so confirm your pen model before anything else.
Understand PLA Versus PCL
PLA, short for polylactic acid, is a plant-derived plastic that flows at higher temperatures and produces crisp, rigid lines. PCL melts at low heat and stays touchable right after extrusion, which is why children’s pens use it exclusively. Neither is better overall; they serve different hands and different age groups.
Weigh Footage Against Color Count
A 32-color pack sounds generous until you realize each shade holds only ten feet. Heavy users drawing large single-color sections benefit from longer per-color runs, while variety-driven artists prefer breadth. Match the split to how you actually create.
Factor In Storage And Shelf Life
All thermoplastic filament absorbs moisture over time, which leads to brittle strands and bubbly lines. Sealed bags, airtight containers, and cool dry storage extend usable life considerably, especially for bulk purchases that sit for months.
Key Considerations Across These Picks
Traps First Timers Fall Into
The biggest trap is ordering 1.75mm refills for a Start+ pen, or vice versa. Second is ignoring per-color length when comparing totals; 320 feet spread thin behaves very differently from 240 feet concentrated. Read the compatibility line on every listing before checkout.
When Paying More Pays Off
Higher-tier packs earn their cost through specialty finishes, tighter diameter control, and brand-backed consistency. Metallics, translucents, and reliable feeding matter most to artists selling work or displaying pieces. Casual doodlers rarely notice the difference, so save the upgrade for when skill demands it.
Frequently Asked Questions
Are 3D pen filaments safe for children?
PCL filaments designed for low-heat pens like the 3Doodler Start+ stay cool enough to touch immediately after extrusion. Adult PLA refills run hotter and suit older users with standard-temperature pens.
Can I use printer filament in a 3D pen?
Yes, most 1.75mm PLA spools share the same diameter as pen refills. Feed consistency and strand stiffness can vary, so dedicated pen refills generally perform more predictably.
How long does a filament refill pack last?
It depends entirely on usage intensity and strand expansion. A 300-foot pack typically supports weeks of casual family drawing, while daily artistic practice consumes it faster.
Why did my filament clog the pen?
Moisture-absorbed or dusty filament is the usual culprit, along with off-spec diameters. Store strands sealed and buy refills with stated diameter control to minimize jams.
Do colors fade or degrade over time?
Stored properly away from sunlight and humidity, PLA and PCL retain their color for years. Prolonged UV exposure can dull shades gradually, so keep packs in drawers rather than windowsills.
Bottom Line
Match the filament to your pen first, then to your creative style. Kids with a Start+ pen belong with the 3Doodler or Kovpnor PCL packs, while standard-pen owners can choose between bulk value, guided stencils, or specialty finishes depending on ambition. Whichever direction fits, any of these ten will keep your pen fed and your ideas taking shape.