Plate Caster with Flat-Free Wheels Load Rating Range 0 to 299 lb Load Rating 275 lb Tread Sawtooth Wheel Dia 8 in Wheel Width 3 in Inside Bolt Hole Spacing 3 in x 3 in Outside Bolt Hole Spacing 2-3/4 in x 3-5/8 in Caster Brake Type No Brake Included Caster Product Group Rigid Caster Caster Sub-Type Rigid Operating Temperature Range 0 Degrees to 100 Degrees F Non-Marking Yes Wheel/Tread Material Polyurethane Tire Rim Dia 4 39/64 in Tire Thickness 2 1/16 in