[THIN WALL DESIGN]14mm magnetic swivel socket is thinner than standard spark plug sockets. It uses advanced 12-point design which fits perfectly, standard is 6-point. [HIGH FLEXIBILITY]360 degree swivel action for maximum flexibility in a tight area. And magnetic core effectively retains spark plugs and minimizes damage. [EFFECTIVE FIXATION]The interior magnet retains and protects the spark plug, not easy to loose the plug when installing/removing, more convenient and efficient. [APPLICABLE SERIES]3/8-Inch drive wobble socket is compatible with for vehicles: 1 Series (E81/E87-N43B), 3 Series (E90-N43B) and 5 Series (E60-N43B). [LONGER SERVICE TIME]Hardened and heat treated Chrome Vanadium steel. Chrome plated mirror maximizes of abrasion and resists against rust & . Material:Chrome vanadium steel colour:Silver Package Contents: 1 x Long Spark Plug Socket 1 x Short Spark Plug Socket Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.