1.steriled by the EO gas ,pyrogen-free 2.by the medical material pp and pe 3.with the hypdermic needle ,the flow regulator,air vent ,filter,drip chamber,plastic spikeŁ¬Y connecter , 4.singel use only 5.can be used in the medical aid 6.the quality wins the good reputation from the customers 7.have passed CE and ISO13485 8.welcome OEM