Hydraulic Stool with Back Rest Description UZUMCU stools are designed for operating and intervention rooms. Their sitting section is made of seamless and nonporous imitation leather to clean easily. With this specification, are used in hospitals, polyclinics, and operating, exam and intervention rooms. 70280/70285 Ergonomic and leather upholstered seat Hydraulic height adjustment by hand lever Height adjustable back rest Aluminum star base with 5 castors Hydraulic height adjustment by foot pedal (Model 70285)