This is actually the brand-new Traxxas 45T VXL Spur Gear for Traxxas 1:16 E-Revo and Slash VXL Feature: For: Traxxas 1:16 E-Revo and Slash VXL Material: Vinyl Color: Ebony Specification: Outer Diameter: 24.75mm Inner Diameter: 5.5mm Width: 7mm Include: Traxxas (#7045) 45T VXL Spur Gear (1 pc)