... barrel can not be moved . It's real safety , won't hurt nurse ,patient or cleaning worker.4,The patient feels ... :Barrel,Plunger with protect wing,Rubber stopper,Hypodermic Needle6,Don't need extra power to push the plunge to botton of ... the mixture and liquid flow easliy.7,Sterlized by EO .9,T/T ,L/C10,MOQ:50000pieces11,Production Capacity:10000000pieces/month12,Individual packed ...