WHOLESALE 5PC IMPACT LUG NUT FLIP SOCKET. Chrome-molybdenum steel construction. Black phosphate finish for durability. Thin-wall design in four sizes. Set includes: 17mm x 19mm, 19mm x 21mm (Thin-Wall Design) 3/4"""" x 13/16"""" (Thin-Wall Design) 7/8"""" x 15/16""Illinois Industrial Tool Professional series tools