This is a brass drop ring. Each brass is sharpened individually. Although it is a small part, we have removed it and made it into a product. This is an original part only from KC,s, which is very inexpensive and cost-effective. By attaching the drop ring to your wallet, the wallet chain is easy to put on and will glide smoothly no matter what position you are. Similar to the drop ring that our product was originally equipped with our product. Pass through the wallet chain ring hole on the back of the wallet, and secure it with screws. Easy to install and remove with a flathead screwdriver. At the center of the main unit, the "KC,s" logo is casually engraved as proof of the original. After installation, the screws may loosen with normal use. To prevent them from falling off, please check them regularly and tighten them more if loose. Only sold as a set of male and female parts. Each part is not sold separately. Wallet and wallet rain sold separately.