Caster Mounting Type Plate, Load Rating Range 300 to 999 lb, Load Rating 880 lb, Wheel Dia. 3 in, Wheel Width 1 3/8 in, Inside Bolt Hole Spacing 2-3/4 in x 2-3/4 in, Wheel/Tread Material Nylon, Caster Brake Type Leveling Pad, Core Color Black, Wheel Core Material Nylon, Frame Finish Powder Coated, Includes Mounting Hardware, General Purpose Leveling Plate Caster, Mounting Bolt Dia. 7/16 in, Outside Bolt Hole Spacing 2-3/4 in x 2-3/4 in, Swivel Raceway Type Double Ball