Debris-Resistant Bolt-Hole Caster 3/8 in Bolt Hole Dia Steel Caster Frame Material Bright Chrome Frame Finish 0 to 299 lb Load Rating Range 175 lb Load Rating 1 Number of Wheels Precision Ball 4 in Mounting Height 3 in Wheel Dia 1 1/4 in Wheel Width Neoprene Wheel/Tread Material 85 Shore A Wheel/Tread Hardness Soft Yes Non-Marking