naħa minnhom hi magħmula minn ethylene copolymer (is  saff ta  ġewwanett) fojl ta  l aluminju rita tal polyethylene b densità baxxa u karta in naħa l oħra hi magħmula minn polyethylene (is saff ta  ġewwanett) aluminju ethylene copolymer u karta