White nylon plastic with a matte finish and slight grainy feel.
About this Product
Hypotrochoid gear system part 1 of 2. In order for you to combine two colors in the gear system, it is split into two products. You can find part 2 of 2 here: http://www.shapeways.com/model/151829/hypotrochoid_3_to_5_part_2_of_2.html?gid=ug26333