"My husband has been putting a keychain to the test as well. He has a lot of keys he needs for his job. He needs easy access to them as well. He has been using this Batman keychain for a few weeks now and likes that he can keep his work and personal keys together but separate. It has a seatbelt style clasp, but is not nearly as large as a seatbelt. He does wish it was a little bit bigger because sometimes its a little difficult for him to get his ginormous fingers to work the push button, but that's really the only issues he has had with it. He also said if he didn't have to have his keys out so often (like he needs to at work) that it wouldn't be an issue. He said this would work really well for a kid or teen maybe attached to a backpack even.
"

– The Interrupting cow