1. Medical grade raw materials, non-toxic, non-pyrogenic, single use only. 2. Transparent barrel and colorfulplunger, other custom colors are available. 3. Custom printing is available with indelible ink. 4. The plunger fits the inside of barrel very well to allow for free and smooth movement. 5. Material for barrel and plunger: Medical grade PP(polypropylene). Gamma / steam sterilization compatiable 6. Material for gasket: Bromo butyl rubber gasket. 8. With caps. 9. Available size: 6ml 11ml 10. Standard: ISO7886-1, BP, USP