Corrosion- Debris-Resistant Threaded Stem Caster Swivel Caster with Brake 110 lb Load Rating 0 to 299 lb 3 in Wheel Dia 1 in Wheel Width Polyolefin Wheel/Tread Material 4 5/16 in Mounting Height Delrin 5/16 In.-18 x 1 in Caster Stem Size Threaded Steel Caster Frame Material Glass Filled Nylon Frame Finish Yes Non-Marking 1 Number of Wheels