Carabiner: an oblong metal ring with a spring clip or locking devise; used in mountaineering to attach a rope to a piton or to connect two ropes. Strong and dependable for climbing it will also work well for diving. Gauges, computers, game bags, dive lights, cameras, slates, you name it a diver wants to secure it to their BCD or Weight Belt. This need is fulfilled by the use of clips and webbing. This Locking Carabiner gives Positive Retention of whatever you attach to it. If you don't want to lose it this is the Clip for you. Made from Corrosion Resistant Anodized Aluminum with a Threaded Locking Latch and can Easily-Attach to BCD D-Ring or Slips-Over Harness Webbing. Carabiner makes a great Save-a-Dive Kit Item.