Hello! Thank you for viewing my listing from among many others. This is a magnetic necklace from TDK. Please use it to improve stiff shoulders. Approximately 68cm, 11 magnets Silver color Engraving: P.RF and TDK. The accessories have been disposed of, so only the item itself is available. It hasn't been used much, so although there are some minor scratches, it's still in good condition. It's also good for your health and stylish for fashion, with a design that can be worn daily, so it can be used unisex. Please give it a try if you're interested.