Authentic XRAY RIGHT-side 2° aluminum caster block & XRAY LEFT-side 2° aluminum caster block are CNC-machined from premium Swiss 7075 T6 aluminum. Ultra-strong construction provides long lifespan & durability in even the most extreme racing conditions. Designed specially for GT platform to improve the steering and to lessen the tire wear. Includes XRAY composite bushings for super-precise and smooth steering action. Laser-engraved with XRAY logo, caster value, and R & L for quick & simple identification. Precision machined with greatest tolerances utilizing premium fully-automatic German CNC-machines. Top-notch layer is completed at XRAYs own in-house fully-robotic finish line, ensuring a great area every time. Fits just XRAY GTX8 and GTXE vehicles.