Most burglars spend less than six minutes inside the home of a victim and only have time to check the most obvious places for valuables. With this product you can hide your valuables in what looks like an ordinary book- the last place a thief would think to look. This is an actual book with a space in the center cut out and comes in assorted titles. The outside and inside dimensions of the book are variable. Please contact us directly if exact dimensions are needed. It is the philosophy of Greenfire to create eco-friendly products that serve more than just one purpose; this product is an example of that. Thank you in advance for supporting an all natural and sustainable business.