High quality replacement caster set for Regency U-Boat utility carts. Listing is for two (2) Service Caster 8 inch diameter by 2 inch wide heavy duty non-marking maroon polyurethane tread on gray polyolefin core wheels and four (4) Service Caster Series #20 swivel casters with 4 inch diameter by 1-1/4 inch wide blue polyurethane tread on gray polyolefin core wheels. Set includes two (2) replacement wheels, two (2) replacement swivel casters, and two (2) replacement swivel casters with brakes. The wheels support 1,000 pounds (lbs.) per wheel and the casters support 350 pounds (lbs.) per caster for a total capacity of 3,200 pounds (lbs.) when used together. Use this Service Caster replacement caster set to do a full replacement on your Regency U-Boat utility cart.