Love this little lock box! We bought one of these after being at a water park with a friend who was using one. We got ours and it has worked great already several times going to a waterpark and a state park where we couldn't carry all of our stuff with us the whole time.
It's super easy to set the code on the box and you have the key as a backup just in case you forget! So far, we have stored both in iPhone 7 Plus, and iPhone 6, a set of keys and a men's and women's wallet in it at one time. It's a major money saver over time (don't have to rent a locker), it seals well, it locks easily and holds enough to be effective but not so much that it's overly bulky. Great buy!