This seat can be used in a bathtub or shower stall. The seat is constructed of durable plastic with easy-to-grip handles and molded-in areas for hand-held shower spray storage. The aluminum legs are flared to help prevent tipping. Slip resistant rubber tips grip shower floor. Seat height adjustment from 13 1/2" to 20 1/2" Weight Capacity is 300 lbs. Overal dimensions: 17"w 16 1/2"d x 13 1/2"h.