Antimicrobial Corrosion- Debris-Resistant Expanding Stem Caster Swivel Caster with Total Lock 220 lb Load Rating 0 to 299 lb 5 in Wheel Dia 1 1/4 in Wheel Width Thermoplastic Rubber Wheel/Tread Material 6 7/16 in Mounting Height Precision Ball 1/2 In.-13 x 2-1/4 in Caster Stem Size Expanding Adapter Stainless Steel Caster Frame Material Polished Chrome Frame Finish Yes Non-Marking 1 Number of Wheels