CNSPEED M12*P1.5 Magnetic Plug Magnetic Sump Drain Nut Oil Drain Bolt Sump drain plug For Most BMW

- Magnetic drain plugs help prevent harmful metals from scratching the engine. - When engine components wear out, they will begin to release metal chips into the engine oil. Â - These plugs have a very powerful magnet that helps to collect these debris directly from the oil during operation. - When you need to change the oil, just clean the magnetic end and reuse it.