These “Version 3” caster block sets have been updated for extra strength. The new design comes standard on the D817 V2 and E817 V2 buggies and they fit most HB Racing 1/8 buggies. They’re available with your choice of 15 degrees, 17.5 degrees, and 20 degrees of caster to help dial in your suspension to track conditions. They’re machined from aluminum for high strength, and anodized black. Degree markings are laser etched on the blocks for quick and easy identification.