MATERIAL - This 12-point 3/8-inch drive socket is constructed of constructed of durable, heat treated Chrome Vanadium Steel. MAGNETIC SPARK PLUG SOCKRT - Unlike traditional runner gaskets, the magnetic core retains and protects the spark plug for easier installation, ensures no more plugs dropping into the engine compartment. 360-DEGREE SWIVEL DESIGN - This spark plug has 360 degree swivel action for maximum flexibility. 16MM THIN-WALL SPARK PLUG SOCKET - The thin wall of the spark plug socket is only 1.2mm thick compared to the standard spark plug socket, which ensures smoothly insert thin walled socket into plug compartment. COMMON APPLICATIONS - The thin wall design of this socket makes it compatible with certain BMW and Nissan engines and a variety of MINI vehicles, such as the R55, R56, R57 and R60. SPECIFICATION: Material: Heat Treated Chrome Vanadium Steel Size: 16mm thin-wall 12-point Spark Plug Socket 3/8" swivel square drive Overall Length: 95mm/3.7-Inch PACKAGE INCLUDED:1 pack swivel magnetic spark plug socket