Features:brand new and high qualityMaterial: Stainless Steel.Type: 3/8 interface 12-point 14mm/16mm for spark plug socket.The compact size and light weight make it very convenient to carry and store.Regardless of 6-angle or 12-angle, as long as the nut diameter is 14mm or 16mm, it can be used.We offer 2 kinds optional (14mm/16mm), you can choose one or more according to your needs.Specifications: Material: Stainless SteelType: 14mm/16mm/2pcs14mm Size: approx 9.7x1.8cm/3.82x0.71 inches16mm Size: approx 9.7x2cm/3.82x0.79 inchesPackage Includes: 1x Spark-Plug SleevesNote: 1.Please allow 1-3cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.