Caster Mounting Type Plate, Load Rating Range 300 to 999 lb, Load Rating 770 lb, Wheel Dia. 2 7/8 in, Wheel Width 1 1/4 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, High-Adjustability Extended-Stem Leveling Plate Caster, Mounting Bolt Dia. 3/8 in, Outside Bolt Hole Spacing 2-3/4 in x 2-3/4 in, Swivel Raceway Type Double Ball