Caster, Load Rating Range 0 to 299 lb, Load Rating 250 lb, Tread Centipede, Wheel Dia. 6 in, Wheel Width 2 in, Inside Bolt Hole Spacing 17 5/8 in x 3 in, Outside Bolt Hole Spacing 3 in x 3 5/8 in, Caster Brake Type No Brake Included, Caster Product Group Rigid Caster, Caster Sub-Type Rigid, Operating Temperature Range -40 Degrees to 180 Degrees F, Non-Marking No, Wheel/Tread Material Rubber, Tire Rim Dia. 2 7/16 in, Frame Finish Zinc Plated, Tread Color Black, Swivel Raceway Type Double Ball