There's no need to cut up a book to hide valuable firearms or jewelry. This set contains false two books, appropriately titled "Higher Power" and "Peace Within" which provide a convenient hiding spot, while blending right in with other hardbound books on the shelf. Large book measures 6.75"x9"x2.75" internally for full size handgun, and the smaller book measures 6.75"x4.75"x1.75" for medium or small frame pistols.