Designed for easy safe transport to and from the toilet and shower. The back is covered with a flexible nylon fabric. 1 anodized aluminum frame won't rust or corrode. Fixed toilet seat is 21H and the arms are spaced 18 apart. Four 5 swivel casters two with rear wheel safety locks. Remove pail and the chair can be positioned over most toilets. Includes pail and toilet seat. Overall 22 38W x 24D x 38H. Weight capacity 250 lbs. 3 year limited warranty.