adakah modcomer yg pakai Magnetic Oil Drain utk mesin dan transmisi?

oiya bagi yg ga tau, itu katanya baut pembuangan oli mesin atau oli transmisi...
tapi ada magnet yg sangat kuat... fungsinya sya cari di internet katanya : Strong Magnetic Drain Plug will attract small metal particles that are floating within the motor oil and prevent them from causing harmful damages. It will help to keep the oil clean and prolong the life of the engine.

nah, belinya dimana ya???
sya pengen pasang niy...
mohon berbagi infonya

thanks