Nedis Book safe small
This book safe looks exactly like a dictionary. Put your valuables in it, put it in the bookcase and no one will suspect that it actually hides a sturdy safe. It's compact so you can easily move it and put it somewhere else. However, with a capacity of 0.86 liters (16.8 x 10.7 x 4.8 cm), it offers enough space for passports, an emergency supply of cash, jewelery and anything else you want to keep safely out of sight and out of reach.
The safe is made of rolled steel, so you can't open it without a key (including a spare key).