Upgrade your 3D pen experience with the 3Doodler FLOW Filament Refills – 20 Color Pack, designed exclusively for the 3Doodler FLOW 3D pen. This premium refill set includes 20 vibrant, high-quality plastic filaments ideal for art, DIY projects, prototypes, and classroom creativity.

Whether you're a beginner or an experienced 3D artist, these non-toxic, easy-to-use 3D pen filaments ensure smooth, consistent extrusion and vibrant color payoff with every stroke. Made for precision and durability, these refills let your imagination run wild — from detailed models to bold abstract designs.