1.Sterilized by EO gas, non-toxic, non-pyrogenic, single use only. 2.Luer lock, assures more secure needle fixation since needles are screwed onto the tip of syringe . 3.The Barrel is transparent enough to help the user observe the mixture and liquid flow easily. 4.The indelible graduation makes the reading easy. 5.The distance between finger grips and barrel is according to the ISO standards, it can guarantee an easy grip. 6.Luer slip or luer lock nozzle permits to adapt the needle hub. 7.Sterilized by Ethylene oxide Gas(EO).