How to choose a tablet protected from external influences?

Question

Mobile devices

Game rooms (with a constant flow of different people) must be equipped with tablets on which information will be useful for visitors.
At the same time, the main task is to prevent the user from exiting the application (lack of external buttons and a special interface?). It is also necessary to securely fix this very tablet on the wall and give it constant power.
Perhaps there are some not very expensive and ready-made solutions such as navigation touch panels or something like that.
Can anyone come across?