Back rail removes quickly and easily. Features a durable, plastic seat with lid. Plastic armrests for additional patient comfort. Adjustable legs allow seat to be raised or lowered in 1" increments to sit from 16" to 221/2" standard, 191/2" to 231/2" 24 1/2" base width; 18" overall base depth; 19" width between arms; 14" seat width; 15" overall seat depth; seat height: 16"-22.5"; overall height: 23.5"-30" Commode.