Package of 2 - 20mm Rainbow Titanium Spike Gears

20mm Outer Diameter, 12mm Inner Diameter, 1.6mm thick. Each piece is individually anodized to feature a one-of-a-kind rainbow finish. The outer and inner diameters of these gears match those of our base metal spike gears exactly (these are slightly thicker than the base metal version). This washer is featured in our new Titanium Galaxy Kit.