Plate Caster with Pneumatic Wheels, Load Rating Range 300 to 999 lb, Load Rating 625 lb, Tread Sawtooth, Wheel Dia. 12 in, Wheel Width 4 1/8 in, Inside Bolt Hole Spacing 4-1/8 in x 6-1/8 in, Outside Bolt Hole Spacing 4-1/8 in x 6-1/8 in, Caster Brake Type No Brake Included, Caster Product Group Swivel Caster, Caster Sub-Type Swivel, Operating Temperature Range -30 Degrees to 120 Degrees F, Non-Marking No, Wheel/Tread Material Rubber, Tire Rim Dia. 6 in, Frame Finish Enamel, Tread Color Black