hydra needle 25 pins micro needle stamping titanium microneedle therapy for skin care

hydra needle roller is to stimulate collagen production and to increase the absorption of skincare products. this new hydra roller with bottle successful combine micro needle with essence liquid and import it automatically. needle number: 25 micro needles.
capacity of ampoule: 5ml.
needle length: 0.25/0.5/0.6/1.0/1.5mm.
needle material: titanium..syi