The wheelchair is designed to deliver maximum comfort and durability. The Viper Plus Reclining Wheelchair is for young people. The state of the art hydraulic reclining mechanism makes easy change in position. The backrest reclines from 90º to 180º for maximum comfort and rest. The double-coated chrome carbon steel frame ensues long lasting durability. The upholstery is made up of nylon & it is flame-retardant. This wheelchair is safe and stable in all reclining positions & built to last.