Big O Key Ring

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 simplicity. The patented, signature locking clasp clicks open and closed so you can keep your keys, phone and wallet in one central, secure location.

To open the signature locking clasp, press down on the flat part of the clasp with your thumb. Once it’s open, you can add on your keys, a wallet and more. To secure your things, pull the lever up until it snaps into place. 

Diameter: 3.75 Inches