Invacare I-Fit - Shower Chair with Backrest gives mobility and security to aid in independent bathing and showering. This shower chair fits most standard showers and bath tubs. It has legs that twist for precise height and adjustment. The seat is both wide and deep with a hand held shower head holder. Includes a non-slip surface and a height that adjusts from 15" to 21". There is a built in numbering system built into the legs to help keep the chair level. Seat width: 20" Seat depth: 18" Weight capacity: 400 lbs. No tools needed.