Secure Key Holder: These stainless steel S-Biners with two gates let you clip your keys to one side and clip the other to your keychain; easily add and remove keys S-Biner with Lock Mechanism: To lock this mini carabiner, simply twist the center lever to lock or unlock the gates when you want to remove a key High-Quality Stainless Steel Carabiner: These S-Biners are made from durable stainless steel with stainless steel gates and a strong plastic locking twist-lever; Dimensions: 0.6" x 1.4" x 0.3" Key Organizer for Multiple Keys: Each S-Biner with MicroLock fits up to three standard keys; easily remove and add keys as needed About Nite Ize: Our inventor-driven products organize your life, protect your gear, light your way, and creatively solve everyday problems