Features: 1. Universal Fitment: suitable for spark plug of 10mm 12mm 14mm 16mm. 2. Easy Operationg: You only need to put the spark plug on the scale that you want to adjust, then put it into the rectangular handle body, and turn the knob on the other end. It is easy to operate and can be adjusted accurately once. 3. Material: The coin shape gap tool is mirror-polished to ensure that the scale will not be worn. Spark plug tool is made of aluminum alloy. The surface of the handle body is treated with blue polar anodizing, anti-corrosion and rust prevention, to ensure the sturdiness and durability of the tool. 4. Stable Rectangular Handle Body: This spark plug gap measuring tool has a rectangular handle body for fixing your spark plug, which make your work easier. 5.100% Satisfaction: If you have any question, please feel free to contact us.We will try out best to help you. Notice: Please allow 1-3cm deviation due to manual measurement Actual color may be slightly different from the image due to different monitor and light effect Description: Material: aluminum alloy Size: As picture show Package List: 1x Spark Plug Splitting Tool