General Purpose Friction-Ring Stem Caster Swivel Caster 120 lb Load Rating 0 to 299 lb 3 in Wheel Dia 7/8 in Wheel Width Polyurethane Wheel/Tread Material 3 1/2 in Mounting Height Plain 7/16 in x 1-7/16 in Caster Stem Size Friction Ring Steel Caster Frame Material Zinc Plated Frame Finish Yes Non-Marking 1 Number of Wheels