Friction-Ring Stem Caster Kit, Swivel Caster, 375 lb Load Rating, 300 to 999 lb, 2 3/16 in Wheel Dia., 2 1/8 in Wheel Width, Polyurethane Wheel/Tread Material, 2 1/2 in Mounting Height, Plain, 7/16 in x 7/8 in Caster Stem Size, Friction Ring, Steel...