Description Item Type: Hyaluron Pen Accessories Function:wrinkle,face lifting,skin tightening,ect. Package Included: 5/10pcs Taking Medicine Needle+Ampoule Head Needle Free Injection System Feature: 1.Needle Free Many people suffer from needle phobia. Our Needle Free Technology alleviates needle phobia with needle-free injection. 2.Virtually Pain Free Fast injection in less than 1/3 of a second, micro orifice, and the automated spring pressure make injections with 'THE SERA' virtually painless 3.Fast, easy, and safe THE SERATM is simple. It can be used by patients for self-injection, or other individuals can administer injections of the prescribed medication. 4.No Risk of Needle-stick Injuries It eliminates needle-stick injuries as THE SERA is needle-free, thus reducing disposal costs Eliminates Cross-contamination 5.Nozzle and adapter are sterilized by gamma irradiation: they are disposable, thus eliminating the possibility of cross-contamination. 6.Long Life and Low Maintenance THE SERATM can be used for over 10,000 injections, and it is operated by a self-powered spring. Note: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2.Please allow slight deviation for the measurement data. 3.Please allow 1-3cm error due to the hand measurement .