Most burglars spend less than six minutes inside a victim's home 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 working wall clock- the last place a thief would think to look. The clock is 10 inches in diameter and 2 3/4 inches thick. The inside dimensions of the safe are 8 1/2 inches x 8 1/2 inches x 1 7/8 inches and is divided into 3 shelves. The WCS is a real clock; one AA battery is required (not included).