Contents: Keypad front plate, back plate, deadbolt, surface strike plate, fixings, templates., 4-Digit Code Length, 6mm Flat Follower, Front plate W x D x H: 41 x 35 x 141mm., Door thickness: 35-65mm., Front & back plates, surface mounted deadbolt, Mechanical operation, Non-handed, Simple Installation, Silver grey finish, For internal & external doors.