First Watch - Homak Between the Studs High Security Steel Wall Safe, White, WS00017001 Can be concealed behind a mirror, picture frame or inside a closet to safely conceals and secures firearms, ammo and othe valuables Dimensions: 17-1/4" W x 4" D x 11-3/4" H Conveniently constructed to fit between 16-inch center wall or floor studs HMC High security tubular locking system Contstructed of heavy duty 1.5 mm steel