Features:Ultra-thin Design: This plug sleeve adopts 12 corner ultra-thin design and high quality metal.Nickel Plating: Ignition plug sleeve adopts matte nickel plating and rust prevention design.Removable Head: This ignition sleeve adopts universal movable head.Applications: This ignition plug sleeve is suitable for14 mm/16mm screws.Lightweight Design: This tool adopts lightweight material which is very light on your hands.Specifications:Material: Chrome Vanadium Steel CR-VApplications:14 mm/16mm screwsincludes:1 *14 mm ScrewsOR1 *39mm Screws