Component : Polyester 100% From : Stable Manufacuring : Up and down pouch seamed by heating treament or needlework possible (2 folds sewing up recommendable) Automatic and hand - operatingDue to dichotomy, existing Vertical Systems are not easy to change flexibly between automation and gand operatingThis product is renewed after supplementing above defects.Even when power off, operable by hand.So dare to say an innovation.