Thermoplastic Polyurethane Rubber Casters provide a low resistance when maneuvering with heavy loads. Resistant to chemicals, acids, bases, alcohol, salts, and steam. Gray tread color. Wheel core is constructed of polypropylene. CST-B23 90 +/-5 Shore A / CST-B28 85 +/-5 Shore A. Made in China. br>
Thermoplastic Rubber Casters are made of high-tech thermoplastic rubber, TPR (Duratek). Tread has been matched with a double precision rigging that offers one of the smoothest rotations in the industry. Swivel sports a high-class three layered finish: brass, nickel, and chrome. Rigid comes standard in zinc. Gray tread color. 65 Shore A. Wheel core is constructed of polyolefin. Made in Taiwan br>