HIGHEST QUALITY Wheel Casters, constructed with of a ring made of high quality elastic rubber, hardness 75 Shore A, which makes it suitable for use in the presence of irregular floors and obstacles. The nylon hub gives the wheel impact resistance and a good capacity. 1-Set includes 2x with locks, 2x without locks.
Double Ball Bearing Swivel Head. Swivel bracket type S10 with bolt hole, made of pressed steel, zinc plated, double ball bearing swivel head. 6" (160mm) Diameter, 2" wide. See additional specs on website or detailed pic.