Single-Wheel Threaded Stem Caster Swivel Caster with Total Lock 190 lb Load Rating 0 to 299 lb 4 in Wheel Dia 1 1/4 in Wheel Width Polyolefin Wheel/Tread Material 5 13/16 in Mounting Height Precision Ball 1/2 In.-13 x 1 in Caster Stem Size Threaded Nylon Caster Frame Material No Finish Frame Finish Yes Non-Marking 1 Number of Wheels