This product uses 3500-4500 Gauss rare earth strong magnetism, which can strongly adsorb metal debris that cannot be filtered by the oil filter in the engine oil, effectively protecting the engine and extending its service life. The oil plug is made of high-strength stainless steel, which is corrosion-resistant and not easy to rust or break, far superior to ordinary aluminum products. Standard M12 × 1.5 thread, suitable for multiple models such as BMW, Ford, Mini, Mercedes Benz, etc. Paired with 5 high-quality copper sealing gaskets, the seal is tight, heat-resistant, and leak proof. It can directly replace the original car oil drain screw, easy to install, and can be reused by cleaning the magnetic surface during oil change.