Plate Caster with Pneumatic Wheels Load Rating Range 0 to 299 lb Load Rating 80 lb Tread Sawtooth Wheel Dia 8 3/4 in Wheel Width 2 1/2 in Inside Bolt Hole Spacing 3 in x 3 in Outside Bolt Hole Spacing 2-5/8 in x 3-5/8 in Caster Brake Type Side Pedal Brake Caster Product Group Swivel Caster with Brake Caster Sub-Type Swivel Non-Marking No Wheel/Tread Material Rubber Tire Rim Dia 4 in Tire Thickness 1/4 in Frame Finish Zinc Plated Tread Color Gray Swivel Raceway Type Double Ball