At first glance, you wouldn't realize what is really hidden behind this book. It is the perfect way to store your valuables. Thanks to this optimal disguise, it blends in seamlessly among the many other books and readings on your bookshelf. This book safe is also practical for travel! Inside the covers, there is a compartment for cash, jewelry, and documents. It can be locked with a cylinder lock (2 keys) - the lock is not visible from the outside. Number of keys: 2 pieces.