Review on Lightweight Multi-Tool Organizer Keychain - Compact and Efficient by Kyle Ziegler

Holds my car key and 7 other keys but unless they're regular household keys it won't fit 10. Many people say these types of key devices are difficult to set up, but I I disagree, but they take a little time as you need to figure out the right distance. Took me about half an hour to set it up but I think it works great. Also, the threads on the screws are quite thin, so be careful not to over-tighten the screw or it may break. Overall I am very happy with my purchase as you get 2 for $12.