Retractable&Sterile&Real Safety CE/ISO certificate High quality material Lower MOQ ... way of using is the same as the traditional syringe.2,Safe and easy disposale after only one use ... the barrel can not be moved . It's real safety , won't hurt nurse ,patient or cleaning worker.4 ... ,The patient feels no uncomfortable when self-destruction starting,.5,Consist of :Barrel,Plunger with protect ...