SWIVEL PLATE CASTER, 6" LOAD HEIGHT.;PLATE MOUNT CASTER, NO BRAKE;[5" DIA] X [1-1/4" WIDE], GREY POLYURETHANE;(3/8" AXLE), (3/8" BORE), (1-5/8" HUB WIDTH), ;TREAD TYPE-FLAT, BALL BEARING, CAPACITY 300 LBS ;(PLATE SIZE 2-3/8" X 3-5/8") AND (1-3/4" X 3" HOLE CENTERS),;(LOAD HEIGHT-6")(WHEEL # 28-1313