Padlock for indoor use only! metal body and wiidth 47mm and shackle diameter of 7mm, with vertical clearance of 22mm. The shackle is made of boron alloy providing maximum resistance to cutting and sawing. Lock can be controlled by smartphone via bluetooth connection. Smart solution to remotely grant permanent or temporary access to users via the app Master Lock Vault Enterprise, available for ios and android devices. CR2450 battery included.