5/8" Swivel Magnetic Spark Plug Socket GOOD COMPATIBILITY:Use advanced 12-point design,standard is 6-point, so thinner than standard spark plug sockets, and it fits perfect and good compatibility QUALITY MATERIALS:Made of heat-treated chrome vanadium alloy steel which features chrome plating for superior durability EASY TO CHANGE SPARK PLUGS:The interior magnet effectively retains and protects the spark plug for easier removal and installation. not easy to loose the plug when installing/removing, more easy and efficient YMUST HAVE:360 degree swivel action for maximum flexibility in a tight area RISK-FREE :Meet & Exceeds ANSI (The American National Standard Institute) and backed by our Lifetime Limited Warranty for your complete peace of mind