These drafting stools are manufactured with a heavy duty gas lift for easy seat height adjustment. Height adjustable foot rest. Back depth adjustment. Armrest with steel inserts. Measurements: Back: 16 in. wide x 10 1/2 in. highFabric seat: 18.4 in wide x 16.4 in. deepLift: 23 in. to approximately 27 1/2 in. Available in gray or charcoal only.