D-shaped, carabiner key chain is made of solid aluminum for strength and durability. Strong spring hinge opens smoothly for attaching this carabiner to bags, backpacks and belt loops. The included split key ring conveniently holds keys, badge holders and more. Advantus Split Key Ring Carabiner Key Ring - Aluminum - 10 / Pack - Black is one of many Key Control & Locks available through Office Depot. Made by Advantus.