General Purpose Threaded Stem Caster Swivel Caster with Brake 275 lb Load Rating 0 to 299 lb 4 in Wheel Dia 1 1/4 in Wheel Width Polyolefin Wheel/Tread Material 6 1/2 in Mounting Height Precision Ball 1/2 In.-13 Caster Stem Size Threaded Steel Caster Frame Material Zinc Plated Frame Finish Yes Non-Marking 1 Number of Wheels