-A better way to hold your keys: This keychain has a stainless steel body with a built-in locking carabiner and features five stainless steel locking S-folders to securely hold, attach, and remove keys. -HIGH QUALITY STAINLESS STEEL CONSTRUCTION - This keychain is steel through and through, from the body of the carabiner clip to the toes holding the five s-files to the doors on all of them, they are high quality stainless steel quality, they are built for all the abuse your keys can take. -ATTACHES AND REMOVES KEYS WITHOUT SPLIT RINGS: With the included MicroLock Double Door S-Folders, one side clips onto your key ring while the other clips onto your key - no need for frustrating split rings. -Locking S-folders, secure with a simple twist: stainless steel micro-locks securely hold up to three keys and doors lock into place with a simple twist of the center lever -Holds up to 15 keys – each MicroLock S-folder can hold up to three keys.