Fits up to 10 keys Secure locking mechanism All-metal construction Diameter: 32.5 mm Thickness: 2 mm Opening: 3.6 mm Metal: Stainless steel 316L Coating: Black PVD Beauty is in the details: Sculpted form with a mirror-finish edge is both a delight to use and to look at. No more broken fingernails: Pull and rotate the quick-release lock to attach or detach your keys. It's that simple! Carry only the essentials with you: Orbitkey ring helps you remove unused keys and excess bulk with ease. Suits most keys: Slim yet durable all-metal construction. Compatible with most keys and key fobs. Works with Orbitkey Key Organizers: Use it with your key organizer to carry extra keys, fobs, car keys.