A toilet-roll holder, also known as a toilet paper dispenser, is an item that holds a roll of toilet paper. Common models include a hinged length of wire mounted horizontally on a wall, a thicker axle either recessed into a wall or mounted on a frame, or a freestanding vertical pole on a base. In recent years, automatic toilet paper dispensers which automatically fold and cut the toilet paper are being installed in public toilets. Main holders A horizontal axle design is found in most homes, and also in many schools. It is easy to use due to its low friction and ease of refilling. This is the type of holder most commonly assumed about when toilet paper orientation is mentioned. Whereas some have the roll mounted at a fixed distance from the surface on which it is mounted, others have an axle on a hinge or groove that allows it to move and maintain contact even as the roll shrinks from use. These designs provide additional friction to make it easier to tear off a piece of tissue. More sophisticated designs include a curved horizontal plate that covers the roll, thus removing the necessity of touching the roll, and a protruding horizontal bump that creates resistance to facilitate single-handedly pulling off slices of paper. These roll holders can be used in both under and over roll orientation, but may be difficult to use in the under orientation. Originally intended to hold a stock of replacement rolls, the vertical pole has become the only paper holder in some households. It is particularly useful in homes where the family has mixed handedness. Its drawbacks include that there is a lot more friction than in other types of toilet roll holders, and thus not as easy to use. Automatic dispenser An automatic toilet paper dispenser can be either button or sensor-activated to fold and cut the toilet paper automatically. Automatic toilet paper dispensers can help aid disabled users, especially in large facilities. Examples are the Camitool by the Japanese company Shikoku, which uses motion sensors to dispense the toilet paper; the SCOTT by Kimberly-Clark, released in 2007, which is also motion activated, though also has a manual knob; and the OriFuji, introduced in 2015, which automatically cuts the toilet paper and folds it into a neat triangle shape. Public toilets The holders in many public toilets are designed to make it difficult