Neodymium magnet hooks are made of NdFeB material and encapsulated in a stainless steel sleeve to protect the fishing magnet from damage during frequent use. Meanwhile, the eyebolt is provided for convenience, but you can remove it and install your own hook. Strong magnets are perfect for underwater salvaging, cave exploration, outdoor treasure hunting, securing heavy objects, and can be used indoors and outdoors, in the kitchen, bathroom, bedroom, garage, locker, office, refrigerator, and even on cruise ships.