Caster Mounting Type Plate, Load Rating Range 300 to 999 lb, Load Rating 550 lb, Wheel Dia. 2 in, Wheel Width 1 in, Inside Bolt Hole Spacing 2-9/32 in x 2-9/32 in, Wheel/Tread Material Nylon, Caster Brake Type Leveling Pad, Frame Finish Powder Coated, Includes Mounting Hardware, General Purpose Leveling Plate Caster, Mounting Bolt Dia. 1/4 in, Outside Bolt Hole Spacing 2-9/32 in x 2-9/32 in, Swivel Raceway Type Double Ball, Replacement Wheel 24WK28