This Nite Ize KeyRing Locker - S-Biner features five colorful, durable polycarbonate locking S-Biner® MicroLocks that attach securely to a solid stainless steel ring. Each S-Biner MicroLock can hold up to two keys, and easily attaches and releases from the KeyRing, or lock to it with a simple twist of the center locking lever. No more fiddling with split rings or fumbling to find the key you need - this KeyRing Locker is perfect for quick and easy sharing of keys with family members, co-workers, valets, babysitters, and for taking a single key with you when you're out on a run or ride.