Polymaker PLA (Polylactic Acid) PolyPlus Spool, 1.75" Diameter, 750 g, 1.75 mm, Red Jam Free: Our patented Jam-Free technology dramatically improves the heat stability of our PLA filaments, by combining the latest development in biopolymer formulation and advanced polymer processing technologies Safe & Clean: PolyPlus PLA is produced exclusively using NatureWorks Ingeo PLA resin Colorful :With a selection of 11 different colors and transparencies you are bound to find the right choice for your 15D printing experience