White nylon plastic with a matte finish and slight grainy feel.
About this Product
These are precisely rendered 20t GT2 Pulleys for RepRap Prusa Mendel, etc. I have used Shapeways laser-sintered nylon pulleys on all my 3D printers with outstanding success. Requires 3mm set bolt and nut. Designed in OpenSCAD, and very affordable. Always available!