Unleash endless creative potential with KEZIGLOW PCL Filament Refills—exclusively designed for 3Doodler Start/Start+ 3D pens, and crafted to deliver safe, smooth, and colorful 3D doodling for kids and beginners! Engineered with a precision 2.5mm diameter, our refills feed seamlessly into your 3Doodler Start/Start+ pen with zero clogging or jamming, matching the performance of official refills and letting you focus on creation, not supply issues. We offer two vibrant color assortments to suit every creative need: a 32-color set with 160 total strands (5pcs per color). Both sets blend bright, popular solid colors, 4 magical glow-in-the-dark shades (that absorb light by day and emit a gentle glow at night) and soft light tones, adding depth and fun to all your 3D art, school projects and DIY crafts. Safety is at the heart of our design: these refills are made from high-quality, food-grade PCL material that's 100% non-toxic and BPA-free. The low-temperature printing technology eliminates hot surfaces and burn risks, making them a worry-free choice for young creators, and every single strand undergoes strict pre-packaging quality control to ensure consistent diameter and smooth extrusion. We've also designed the refills with practicality in mind: each pack comes in a reusable self-sealing bag that keeps filaments dry, dust-free and tangle-free for long-term storage—no more wasted or damaged refills! With a rich color selection and kid-safe construction, KEZIGLOW 3D pen refills aren't just a crafting supply; they're the perfect creative gift for 3D pen lovers of all ages, ideal for Christmas, birthdays, Children's Day and any occasion that calls for imaginative fun. Note: This product is ONLY compatible with 3Doodler Start and Start+ 3D pens. Not suitable for any other 3D pen brands or models. For optimal performance, confirm your pen model before purchase.