Non-marking gray rubber on polyethylene core. Steel thread guards for additional protection. Ideal for carts, bins or containers in many environments. Wheel Diameter (in.): 4, Caster Type: Rigid, Wheel Type: Nonmarking gray rubber on polyethylene core, Capacity (lbs.): 175, Wheel Width (in.): 1, Foot Brake: No, Mount Height (in.): 5 1...