Features: These keychain rings make of titanium alloy material, hard and strong. These flat key rings tight closure ensures security, and never worry about slipping offs from key rings. The round flat split rings is good for connecting clasps, charm, other ornaments; easy and convenient to carry. Metal key rings fit for various aspects and can be applied to many different item. They perfect for organizing your car key, hangs cards,and so on. The split keychain rings is suit for jewelry making, home use, car keychains, lanyards,and other diy project. Specifications: Material:Titanium Alloy Size:Approx.30/25/20/16mm;1.18/0.98/0.78/0.62inch Package Includes: 1pc Keychain Rings note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.