Antimicrobial Corrosion- Debris-Resistant Bolt-Hole Caster 1/2 in Bolt Hole Dia Stainless Steel Caster Frame Material Polished Frame Finish 0 to 299 lb Load Rating Range 190 lb Load Rating 1 Number of Wheels Precision Ball 5 5/16 in Mounting Height 4 in Wheel Dia 1 1/4 in Wheel Width Thermoplastic Rubber Wheel/Tread Material 85 Shore A Wheel/Tread Hardness Soft Yes Non-Marking