Material information The chair is made of pressure fitted plywood in varnished mahogany or unfinished teak, while a child of 0-4 years (maximum 17 kg) will sit comfortably on a cushioned fabric.  The belt is made of plastic and spring locks in acid-resisting material – everything in order to tolerate a life in a salty environment. The frame is also made of stainless steel and acid-resisting material. The seat is well approved at sea and at Swedens Test and Research institute (SP). The chairs weight is 3.5 kg.