It is made by injection moulding of ps plastic, non-toxic, non-irritant. It can adjust at will, smooth edges from plastic resin-less, apprehension from patients. For single use only, sterile unless package is opened or damaged, sterilized by ethylene oxide. Size: L, M, S. Carton size: 52*39*32 cm G.W.: 6kg Single polybag, film, blister.