Hey there! So you're looking to gap your spark plugs just right? This RASTP Spark Plug Gap Tool is exactly what you need. It works with almost every spark plug size out there—10mm, 12mm, 14mm, and 16mm. Just pop your spark plug into the tool, choose the right feeler gauge thickness (it comes with one, by the way), then turn the knob until the side electrode is perfectly set. No more guessing or struggling! The tool is made from sturdy aluminum alloy with a sleek black finish, so it'll last a good while. Whether you're tuning up your car, truck, or motorcycle, this little gadget gives you that precision gap every single time. Super easy to use, even if you're not a pro mechanic. Perfect for DIYers, weekend warriors, or anyone who wants their engine running smooth. You get the gap tool and a feeler gauge—everything you need in one package. Say goodbye to misfires and hello to better performance!