This is an optional set of Traxxas Red Aluminum Caster Blocks, 6061-T6 aluminum
This unique C-Hub design is already Traxxas Tough; this artfully machined aluminum version is stronger still, and preserves the carefully engineered steering and suspension geometry for track-ready performance. The brilliant-blue or red anodized finish and laser-etched TRX logo adds high-tech style to your machine.