A little leg rest for an arm chair or soft stool.

A stool is one of the earliest forms of seat furniture. It bears many similarities to a chair. It consists of a single seat, for one person, without back or armrests (in early stools), on a base of a stool there are either one , two, three or four legs.

A chair is a piece of furniture. It is used for sitting on and it can also be used for standing on, if you can't reach something. They usually have four legs to support the weight. Some types of chairs, such as the bar-stool, have only one leg in the center. Those chairs are usually able to spin.