Traxxas aluminum caster blocks improve the appearance, ruggedness, and control on Rustler,Slash, and the Stampede. In addition to the strength and precision of the machined billet 6061-T6 aluminum, the red or blue anodized caster blocks feature a high-contrast laser etched TRX logo. Two anodizing color choices are available, fire-red or brilliant-blue. Simple bolt-on installation that anyone can perform inspires confidence for future upgrades.