This device consists of dual inner foam, lower layer firm to ride over any surfaces, carpets, concrete or stairs whilst maintaining patient comfort. Made with safety belts and foot pocket to hold patient in place. Supplied with a wall hanging bag. For use by 2 people.Our wall mounted, handy evacuation device...;; This device consists of dual inner foam, lower layer firm to ride over any surfaces, carpets, concrete or stairs whilst maintaining patient comfort. Made with safety belts and foot pocket to hold patient in place. Supplied with a wall hanging bag. For use by 2 people.Our wall mounted, handy evacuation device...