New style: Long version, 2 in 1 for spark plug. This 3/8" Swivel Thin Wall Magnetic Socket features a 12 point design, meaning its walls are only 17.7mm thick compared to the 19.7mm thickness on the standard 6 point sockets. Great Flexibility: The spark plug socket is made of high quality chrome vanadium steel and features a 360 degree swivel action for maximum flexibility , allowing access to most confined areas. The interior magnet holds and protects the spark plug, ensuring it stays firmly in place during installation and removal, so you won't have to worry about losing it. < p>Essential: 360 degree swivel smooth socket with magnetic and slim wall design. Training : 9.5 mm - Total length: 30 cm. Common Applications: The thin wall of this socket makes it compatible with certain BMW engines and a variety of Mini vehicles, such as Benz E90 and more. High QualityQuenched and heat treated chrome vanadium alloy steel. Designed and engineered for spark plug removal and installation. The interior magnet will not wear out over time like traditional rubber seals, so this socket can provide years of reliable use.