22 Colors 3D Doodler Pen Refills Only Fit for Start+ 3D Pen Low Printing Temperature PCL Filament Start Refills Packs Each Color 15.2 cm x 5 pcs Total 110 pcs

Only Support for Start+ 3D Pen: This 3D Doodler Pen filament refills pack only for Start+ 3D printing pen; The PCL filament refill diameter is around 2.5 mm, so it's NOT for any other brand 3D pen, It's only for Start+ 3D Pen

• 22 Different Colors: This 3D Doodler Pen Refills Packs include 22 mixed colors ( 15 popular bright soild colors, 4 glow colors, 3 light colors ) , Glow colors are glow green, glow blue, glow red, glow yellow; The glow filament refills can glow in the dark after absorbing light
• Dimensional Accuracy: The Dimesional of the 3D Doodler pen refills packs for Start+ 3d pen is around 2.5 mm, and each strand length is 15 cm,same as the pen filament refills and it works fine with start+ 3D pen
• Premium and Safe Raw Materials: The 3d doodler pen refills raw materials is PCL, and the PCL material is low printing temperature, safer, non-toxic, and smooth printing; Each strand of the 3d doodler pen refills is quality controled before being packed