Performance TPR Wheels are specially engineered to provide unsurpassed durability and reliability. This premium wheel combines the durability of a hard tread wheel with the quiet floor protection of a soft tread wheel. They are made of a thermoplastic elastomer that is permanently bonded to a polypropylene core and will not mark floors. The Performance TPR Wheel is resistant to chemicals, acids, bases, alcohols, salts and steam. This attractive wheel accommodates a large number of industries and a limitless number of applications such as hospitals, schools, restaurants, factories, warehouses and shop floors.