Ingenious oil pan plug replaces your factory steel oil pan plug with a billet aluminum plug that has a magnetic tip. Tip collects particulates in oil that cause internal engine wear. We've seen a noticeable collection of metal particulates after just one oil change. Plug is reusable, and is supplied with a factory style crush washer. Make this a part of your next oil change service, and start monitoring your oil more closely for magnetic metal contaminants! Made in Japan of the highest quality.