The Traxxas Inner Drive Cups & Screw Pins for the Revo model (2) TRA5153R is a set of drive cups designed for RC cars, trucks, and motorcycles. Made by Traxxas, these drive cups are compatible with electric vehicles at a 1:10 scale. With a focus on high-quality and durable parts, these inner drive cups are suitable for advanced hobbyists and enthusiasts aged 12 and above. Manufactured in China, these drive cups are a crucial component for maintaining the performance and reliability of your RC vehicle.