My husband died maintenance for apartments, so he always has a ton of keys.  On more than one occasion those keys have gotten misplaced.  This combination lock box fixes that issue.  Affix it to the wall easily with two screws.  Has places to hang up to 48 sets of keys.  This lock box also comes with keychains that you can number, number stickers also included.  Setting the combination is super easy and you can also change it whenever you'd like.  The combination lock is one of the best features, especially for someone who tends to lose keys.  Highly recommend for anyone that deals with any amount of keys!