1. Rotating male luer provodes convenient and fast connection;

2. Transparant cylinder enhances visual efficiency of gauge mark and contrast;

3. Special designed silicon piston head and lubricating technology lead the plunger easy to move in ctlinder and high pressure resistance;

4. Thumb and finger rings fulfill precise does control;

5. A new model of control syringe which with a locking is easier and more preciser for the doctor to control is in development.