I've been using a carabiner to clip my keys to my purse for years and when the paint on my last one was peeling I decided to find something smaller to keep my keys from dangling as much. This is exactly what I was looking for. The hook doesn't extend beyond the key and I can still attach it to my purse. As another reviewer noted, its size can make it difficult to attach and detach. I use mine with a metal ring so I haven't had any issues, but if you're expecting to attach it to a belt loop or something more secure I probably wouldn't recommend it.
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