Answering your search for reliable 3D pen filament refills, this guide highlights five compatible options that cover a wide range of pens, colors, and price points. These refills are ideal for kids learning to draw in 3D, hobbyists crafting small sculptures, and designers prototyping ideas with quick color changes. Each product section explains who benefits most, why it stands out, and a practical caveat to consider. A quick summary table is included to help you compare core details at a glance.
| Product | Diameter | Colors | Length (approx.) | Best For |
|---|---|---|---|---|
| DO3D 15 Colors | 1.75mm | 15 | 150 ft | Beginners and mixed-color projects |
| SCRIB3D 20 Colors | 1.75mm | 20 | 328 ft | Creative mixed-color drawings |
| YEETIN 15 Colors | 1.75mm | 15 | 240 ft | Standard 3D pens and general use |
| Logiim 32 Colors | 2.5mm | 32 | ~60 ft per color (approx. 160 ft total per pack) | 3Doodler Start+ users |
| MIKA3D 32 Colors (PLA) | 1.75mm | 32 | 320 ft | PLA projects with varied color needs |
DO3D 15 Bright Colors 1.75mm PLA Filament Refill

The DO3D pack provides 15 bright 1.75mm PLA colors totaling about 150 feet. The filament is described as 100% new material with controlled diameter and non-toxic, bubble-free printing. Best for beginners and kids learning to print with a dependable, vibrant color range. The pack emphasizes compatibility with MYNT3D and SCRIB3D pens, while noting it is not suited for 3Doodler 3.0mm pens. A practical caveat: PLA can be more brittle than some alternatives when used for flexible or high-stress builds. Choose this if you want a broad color mix for quick prototyping and color testing in PLA.
Who it’s best for: Beginners, classroom use, and casual artists who want a complete set without picking colors individually.
SCRIB3D Pen Filament Refills, 20 Colors

SCRIB3D’s refill bundle offers 20 colors of 1.75mm PLA, totaling about 328 feet of material. Designed for broad compatibility with most 3D pens, this set excludes 3Doodler Create+ models. It emphasizes smooth extrusion with minimal clogging and a temperature range of 160°C–210°C, facilitating a wide range of projects from fine lines to bold fills. A limitation to note: compatibility is not universal; confirm your pen model matches the 1.75mm PLA requirement before purchasing. Pick this if you want a varied color palette and reliable flow across multiple pens.
Who it’s best for: Makers who need a comprehensive color set that works across several common 1.75mm pens.
YEETIN 3D Pen Filament Refills, 15 Colors

YEETIN offers 15 colors in 1.75mm PLA, totaling 240 feet, with compatibility noted for SCRIB3D P1/ADV, MYNT3D Basic/Super/Pro, and Pika3D systems. It warns of incompatibilities with some junior or smaller models. The range suits everyday drawing tasks and simple 3D creations. A potential limitation is the explicit note of model incompatibilities; ensure your pen matches the supported list before buying. Opt for this if you want a straightforward, broadly compatible PLA refill set for standard pens.
Who it’s best for: Users with SCRIB3D, MYNT3D, or Pika3D pens seeking a dependable, budget-friendly color assortment.
Logiim 160Pcs 32 Colors PCL 2.5mm Filament

Logiim’s 2.5mm PCL filament pack is designed for 3Doodler Start+ exclusive use, featuring 32 colors across 160 feet of material per pack. The low-temperature, non-toxic, odor-free composition helps keep the pen tip cooler and safer for kids. Ready-to-use packaging and moisture-sealed bags help maintain filament quality. A key caveat: this is a 2.5mm format, which does not fit many 1.75mm pens; verify your pen’s diameter before purchase. Choose this for a kid-friendly, Start+ focused color library and low-heat operation.
Who it’s best for: 3Doodler Start+ users and families seeking a broad color library in a safe, low-temperature filament.
MIKA3D 32 Colors PLA Filament Refills

MIKA3D supplies 32 PLA colors totaling 320 feet, including a mix of solids and metallic accents. It is compatible with MYNT3D and SCRIB3D pens but not for 3Doodler pens. The package emphasizes high diameter tolerance, vacuum sealing, and eco-friendly production for smooth printing. A limitation is the explicit note of non-compatibility with 3Doodler pens. Choose this if you want a diverse PLA palette for multi-color PLA projects across compatible pens.
Who it’s best for: Quick-color testing and PLA projects for pens like MYNT3D and SCRIB3D, with a preference for a wide color range.
Buying Guide
What diameter should you choose?
Most consumer 3D pens use 1.75mm filament. If your pen requires 2.5mm (some older Doodler models), you’ll need a compatible pack like the Logiim set. Always verify your pen’s filament diameter before purchasing to avoid mismatches that can cause jams or poor extrusion.
PLA vs. ABS vs. PCL
PLA is common for beginner to intermediate projects due to ease of use and safety. ABS offers higher strength but requires higher temperatures and can shrink as it cools. PCL is a low-temperature, kid-friendly option for safe handling. Consider your project needs and your pen’s temperature tolerance when selecting a filament type.
Color variety and color accuracy
Look for packs that clearly separate colors and include a mix of bright and subtle tones if you plan to do shading. Some sets include metallics or specialty colors, which can be helpful for accents. Check the total footage to ensure you have enough material for multi-color designs.
Pen compatibility and model exclusions
Many refills advertise compatibility with popular pens (MYNT3D, SCRIB3D, Pika3D). Some explicitly exclude certain models (e.g., 3Doodler Start+ or junior lines). Double-check your exact model and the diameter before purchasing to avoid waste and returns.
Packaging and longevity
Moisture sealing and vacuum packaging help preserve filament quality, reducing bubble formation and tangling during printing. Ready-to-use pre-cut lengths save time and reduce waste, especially for kids’ projects or classroom use.
Maintenance and storage tips
Store filaments in a cool, dry place away from direct sunlight. If the pack uses resealable bags, press out air before sealing to minimize moisture exposure. Regularly inspect filament for cracks or brittleness, especially with long storage periods.
FAQ
What filament diameter should I buy for my pen?
Most pens use 1.75mm; some older models require 2.5mm. Check your pen’s manual or model specifications before purchasing.
Is PLA safe for kids?
Yes, PLA is generally considered safe and non-toxic for educational use, with a lower heat requirement than ABS.
Can I mix colors from different brands?
While this is possible, mixing brands can affect extrusion consistency due to small diameter tolerances. For best results, use the same diameter and similar material type across colors when possible.
Will these filaments clog my pen?
Clogs are usually caused by diameter inconsistencies or extrusion issues. Choose filaments with tight diameter tolerance and keep your pen clean and well-maintained.
Are metallic or specialty colors worth the extra cost?
Specialty colors can add appealing accents and depth to projects but may not always perform identically to standard colors. Evaluate project needs and budget when selecting these options.