... by the special molecule technology. 2 pressures help spray the nurture out to remove wrinkles and to rejuvenate ... of toxin. 4.Spray gun1. spray needle cover ,2. gas nib,3.essential nozzle,4.gun body and liquid cup ... ,5.cup cover,6.button,7. trigger,8. spray needle cover, ... fix the needle,10. rebound spring,11spring bolt,12. spray needle,13. needle nut,14. back cannula,15. ...