[ & HEALTHIER MATERIAL]Compared to refills ABS/PLA 1.75mm, PCL filament with a lower melting temperature of 70℃ which eliminate the of burning hands. Besides, PCL filament refills are 100% derived from reable plant resources, will not create pungent odor when infused into , non-, No odor, non-irritating and biodegradable< />[20 COLORS ] refill pack of 20 various colors scribble your 3D artistic masterpiece idea and make your masterpiece glow in the dark. A great and art lo to DIY what they want, and b up kids to have with crafting and ding< />[ULTRA-]PCL filament for with Low temp releasing technology and high-precision PCL filament 1.75mm diameter your 3D ding y smoothly without oily residues or , no clogging< />[UNISAL COMPATIBI]Compatible with most 3D Pens/3D Printers on market, Not suitable for pen< />[ENJOY THE of CREATION]This 3D printing pen filament refills are excellent gif to improve their spatial thinking, cultivate creation, imagination and artistic skills. Also, a great way for paren and children to spend happy time together, strengthening the bond< />< />PCL Filament Refills PCL Filament Refills PLA Filament Gold Handles Tray Handles< />size:Length of each roll: 3.0m< />Material:PCL< />colour: Color< />20 kinds of colors are , can not choose to specify< />< />Package Conten:< />1 x 3D Printing Pen PCL Filament Refills set