These 17 mm hex adapters make it easy to install a wide range of wheel and tire combinations on your Traxxas vehicle. Installation is simple using the included 5 mm hex wrench. The adapter's unique splined design offers maximum strength when used with 17 mm splined wheels, and also fits any standard 17 mm hex wheel. Rugged machined-aluminum construction and vivid blue anodizing combine custom looks with maximum performance. Contains all necessary hardware to convert one vehicle.