- Neodymium magnets are strong and dangerous. Before using the neodymium magnets, please read the instruction manual carefully before using. Warning: Keep out of reach of children and those who require supervision. If the magnet is accidentally swallowed, it may lead to an accident. If swallowed magnets stay in your body may require opening surgery, so please immediately consult a doctor and follow the directions. Please do not use if you are wearing a heart pacemaker or other physical implantative medical electronics. Also, please keep away from the wearer. The device may malfunction. Caution: If the magnet is held together with each other or other object with its own adsorption, the magnet body and surface treatment may break or peel. When handling multiple magnets, please work at a distance that is not affected by each other. When adhering to magnets or metals, there is a danger of pinching fingers and skin injuries and preventing the fingers and skin from being removed. ●Please keep the magnet away from mobile phone, analog watch, floppy disk, magnetic card, magnetic tape, and riding tickets. It can be destroyed.