The Signature Collection is a happy rainbow of classic Oventure colors and metallics with a smooth leather finish. The Original Big O® Key Ring is a one-size-fits-all bracelet key ring that can be worn on your forearm or above your elbow for hands-free ease. The patented, signature locking clasp clicks open and closed so you can contain your house keys, car keys, card case, and more in one central, secure location.