Seatrest and Backrest are manufactured from polyurethane material in aluminum molds which are designed in accordance to the human anatomy and have the standart of 50 ± 10% densty and Mvss 302 fire behaviour. Seatrest and Backrest have a durable inner skeleton made of metal profile. There will be ridge on the surface of the backrest sponges that will allow the back to breathe and will massage the back at a height of approximately 1 cm throughout the entire surface. The Seatrest will have a gravity-centered mechanism that will allow it to close automatically. If desired we can supply a special mechanism, when the seated person gets up from the seat, is closes slowly and slently.