The carabiner keychain is made titanium alloy, corrosion and high temperature resistance, matte finish, Anti-rust, won't fade Without using traditional twisted spring, one-piece molding using the toughness of Ti, durable and hard to be deformed Very tight bayonet structure, never need to worry keys falling off. The keychain clip holds all your keyring, perfect for every day carry This titanium carabiner fits comfortably on pants loop or in pocket, Convenient to organize your door keys, car key or some other small parts We have a professional customer service team to serve you at any time. If you have any complaints about the products, please feel free to contact us Material: titanium alloy Outer size: Large size: L 55 *W 25 *Th 4.5mm Inner size: Large size: 47*17mm Titanium ring: outer diameter 32mm, innner diameter 25mm, thickness3.5mm