General Purpose Threaded Stem Caster Swivel Caster with Brake 130 lb Load Rating 0 to 299 lb 4 in Wheel Dia 1 in Wheel Width Polyurethane Wheel/Tread Material 4 7/8 in Mounting Height Plain 5/16 In.-18 x 1 in Caster Stem Size Threaded Steel Caster Frame Material Zinc Plated Frame Finish Yes Non-Marking 1 Number of Wheels