<b>Product Name:</b> Spark Plug Gap Tool<br><br> <b>Material:</b> aluminum alloy<br> <b>Specifications:</b> 12mm, 14mm.<br> <b>Colour: </b>Black<br><br> <b>Applications:</b> <br> Universal for all 12mm threaded spark plugs.<br> Universal for all 14mm threaded spark plugs. <br><br> <b>Easy to use steps:</b> Simply screw your spark plug into the bottom of our gap tool.<br> Use your desired size feeler gauge for gap thickness.<br> Turn the knob with the feeler gauge in place till the side electrode compresses to the desired gap thickness.<br> <br> One full year of warranty.