hardly heavy duty
I bought a pair of detachable key chains for my husband and I.  His broke within 2 weeks.  Mine still works, but you can tell that it's not as "heavy duty" as the name leads you to believe.  I actually couldn't find this type of thing at Walmart, so that's why I reverted to online.  I researched as best I could, but there just don't seem to be any good quality choices on Amazon.
Rating: 2 stars