d-ring closure Upgrade Full Stainless Steel Material: This key chain make of full stainless steel has built in prevents accidentally losing keys. Plus it has a strong but easily opened latch to hook to belt loop. Nice Design for Keys: The keychain carabiner used for keys also contributes to the design of the latch, which should last a lot longer than the cheap carabiners out there. Lightweight But Convenient: One of the lightest hardness key chain (2x1x0.11 in, 0.46 oz). It also provides a slight advantage by allowing for a key ring to slip down to its smartly designed pocket. This is an everyday work item as you require multiple keys during the day and over the years have tore up multiple belt loops from regular clips. The smoothed clip on this product is a clothing saver and the bottle opener is a extra for after work.