Features: 1.Helps to achieve perfect spark plug clearance. 2.Universal for all kinds of 12mm spark plug. 3.High quality material with CNC machining, it is solid and durable for long term use. 4.Easy and convenient to use. 5.Compact and light weight, easy to carry and store. Specification: Features:_x000D_ 1. Helps to achieve perfect spark plug clearance._x000D_ 2. Universal for all kinds of 12mm spark plug._x000D_ 3. High quality material with CNC machining, it is solid and durable for long term use._x000D_ 4. Easy and convenient to use._x000D_ 5. Compact and light weight, easy to carry and store._x000D_ _x000D_ Steps:_x000D_ 1. Simply screw your spark plug into the bottom of our gap tool._x000D_ 2. Use your desired size feeler gauge for gap thickness._x000D_ 3. Turn the knob with the feeler gauge in place till the side electrode compresses to the desired gap thickness._x000D_ _x000D_ Specification:_x000D_ Condition: 100% Brand New_x000D_ Material: Aluminium Alloy_x000D_ Color: As Pictures Shown_x000D_ Purpose: Universal for all 12mm thread spark plugs_x000D_ _x000D_ Package List:_x000D_ 1 * Spark Plug Gap Tool PackageList: