Traxxas 5353X Blue-Anodized Aluminum 17mm Wheel Hubs/Nuts (set of four) Made from durable 6061-T6 aluminum with brilliant blue-anodized finish Splined design interlocks with Traxxas 17mm splined wheels for precision alignment and unsurpassed torque handling Ground-breaking design also accepts traditional aftermarket 17mm hex hubs Includes 4 wheel hubs, 4 wheel nuts, and 4 screw pins with threadlock Designed to fit larger 1/10 scale Traxxas vehicles: E-Maxx, E-Revo, Summit