Material: Barrel-Made of medical, transparent polypropylene with Plunger stopped ring. Plunger: Made of medical polypropylene. Standard piston: Made of natural rubber with two retaining rings. Or Latex Free Piston: Made of Synthetic non cytotoxic rubber, free from The protein of the natural latex to avoid possible allergy.
Needle adapter: Made of medical grade PVC . Needle protector: Made of medical grade transparent PVC or PE. Blister or plastic package: Medical grade paper and plastic film.