Clef features a 1-inch diameter heavy brass metal ring to secure all your precious keys. The industrial-grade brass metal hook will help you attach the keyrings to any other accessories. It also balances the weight of the keyring, facilitating a confident, firm grip. The core of the keyring is made out of a large piece of our most premium WildWoven Leather, and the edges are hand-painted, just like any of our premium wallets. Crafted for durability and designed for sophistication, the Clef keyring promises to age gracefully and tell your unique story. -Dimension: 5.5 inch (length) x 1.2 inch (width)