OEM Ramp Style Spark Plug Gap Gauge is a precision tool designed to help you accurately measure and adjust the gap on your spark plugs. This ramp style gauge ensures optimal spark plug performance by providing a reliable and easy-to-use method for checking the gap size. I for mechanics and DIY enthusiasts alike, it comes packaged individually on a card for convenient storage and use. Enhance your engine's efficiency and longevity with this essential spark plug gap gauge. Model Number: 25352