It's too small and made of magnets, so I couldn't even use it because it kept falling off. Hello, customer. This is GVG STORE. Thank you for your valuable review. It seems that you were very uncomfortable during the wearing process. It would have been better if you had contacted our customer service center right away. This is the product you ordered and were looking forward to, but I am sorry for not giving you a good memory. Next time, please feel free to contact our customer service center at any time. Thank you. :)