Features: * Thermoplastic rubber treads offer resistance to oils and chemicals * Soft durometer offers quiet mobility * Mechanically bonded tread eliminates separation and is very durable * Ball bearing centers * 1-1/4 inch tread width * 1-1/2 inch hub length * 3/8 inch axle * 85A durometer, shore scale * 5 inch size What"s In The Box: * Shepherd 9018 5-Inch Light Duty Swivel Caster