Polymaker PLA (Polylactic Acid) PolyWood Spool, 3" Diameter, 600 g, 3.00 mm, Wood (Pack of 100) 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 Wood with no mess : PolyWood is composed entirely of polymers. Instead of using wood to mimic wood, we developed a unique foaming technology to deliver a material that mimics wood structurally Colorful Wood: Since PolyWood contains no actual wood, we can create any color aesthetic we want (Currently under development; Stay tuned for more updates)