Friction-Ring Stem Caster Swivel Caster 225 lb Load Rating 0 to 299 lb 4 7/8 in Wheel Dia Thermoplastic Elastomer Wheel/Tread Material 5 5/16 in Mounting Height Plain 7/16 in x 1-7/16 in Caster Stem Size Friction Ring Nylon Caster Frame Material No Finish Frame Finish Yes Non-Marking 2 Number of Wheels