There are a few different types of products that allow an individual to sit down outside the bath or shower and slide into the tub or shower. One type is a transfer bench, which typically has a padded seat and backrest, and may also have armrests. Another type is a swivel chair, which has a rotating seat that allows the individual to turn around and face the door of the shower or tub. There are also special chairs that can be installed in the shower or tub itself; these usually have suction cups or other secure attachments to keep them in place.