A toilet seat cover or toilet sheet is a disposable piece of paper shaped like the toilet seat itself that can be placed on the seat by its user. Its purpose is to protect the toilet's user from germs that may be resting on the seat by creating a protective barrier.
A wall-hung toilet is a system in which the toilet bowl is mounted directly to the wall, while its tank is installed inside the wall. This allows wall-hung toilets to take up less space. Having the tank behind the wall gives a more modern look since the working parts are hidden.