This is the optional .8 Metric Pitch 62 Tooth Spur Gear for the Traxxas E-Maxx. FEATURES: Nylon construction, black in color .8 metric pitch YOU WILL RECEIVE: One 62T 0.8 metric pitch spur gear REQUIREMENTS: Installation on the vehicle SPECIFICATIONS: Diameter: 2" (51mm) Thickness: .23" (6mm) tlw 1/2/08 ir/jxs &