Debris-Resistant Friction-Ring Stem Caster Swivel Caster 300 lb Load Rating 300 to 999 lb 5 in Wheel Dia 1 1/4 in Wheel Width Polyurethane Wheel/Tread Material 5 13/16 in Mounting Height Precision Ball 27/32 in x 2-3/16 in Caster Stem Size Friction Ring Steel Caster Frame Material Zinc Plated Frame Finish Yes Non-Marking 1 Number of Wheels