Every syringe is individually sealed, clean, safe and sterile, good for essential oil, science lab, industrial, applications of inks, perfume, lubricants, sealants, etc. Polypropylene barrel plunger for measuring and dispensing fluids, suit for lab use and experiments 1) Disposable syringe with three parts,luer lock or luer slip 2) Passed CE and ISO authentication. 3) Transparent barrel allows easy measurement of the volume contained in the syringe. 4) Graduation printed by indeliable ink on the barrel is easy to read 5) The plunger fits the inside of barrel very well to allow for smooth movement 6) Material of barrel and plunger:Material grade PP(Polypropylene) 7) Materials of gasket: Natural Latex,Synthetic Rubber(latex free) 8) Products 1ml,3ml,5ml,10ml with Blister packing are available. 9) Sterilized by EO gas, non-toxic and non-pyrogenic.