No keys is required , and it can be turned to open after entering the password Easy to use The body is zinc alloy , which is firm , rust proof and has a long service life : Use screws to install more firmly You can change the installation position of the password from left to right according to your own installation scenario Three digit password password is 0-0-0 It has high and reliability It is suitable for keyless applications such as metal boxes , iron cabinets and filing cabinets, Manufacturer: Watreketal