Not only does the Lint Roller Diversion Safe have a hidden compartment inside, but it is a real working lint roller. To open the hidden compartment, simply unscrew the top of the lint roller and place your valuables inside. Screw the top back on, and roll away. This Lint Roller with hidden safe is perfect for travelers, college students, home, and pet owners. Inside diminsions of the safe are 1 1/2 inches x 3 1/2 inches.