Having a few carabiners around can really come in handy. These carabiners make a great EDC keychain. Attach more than keys and keep other frequently used small items within arms reach when clipped to your belt loop. Great for attaching small Everyday Carry items to a backpack. Basically, if you need to attach an item to another item, these are a great option.
These ASP brand carabiners are made of polymer and are offered here in black or Coyote tan.