Main features:

• Hardened steel
• Black finish
• Made to fit 3mm shaft motors
• Fits Gmade R1 Rock Buggy, Spider, Dragoon, Stealth, G1, Traxxas E-maxx, E-Revo, Tamiya Clodbuster, TXT-1

What's included:

• 32 pitch 3mm hardened steel pinion gear 19 tooth x 1
• 3x3mm set screw x 1

Specs:

• Length: 11mm
• Inner Diameter: 3mm