Dr. Pen Ultima A6 microneedling pen is used mostly for face wrinkles, scars, stretch marks and facial lines.<br> <br> Dr. Pen uses sterile, individually-sealed, disposable needle cartridges for optimal safety and comfort. <br> <br> The adjustable dial allows treatment that adapts to individual client’s needs. (Notice that the maximum depth depends on your cartridge's type)<br> <br> Dr. Pen is more economical than derma roller, you just need to recharge the pen and replace cartridges after every use. Come with two replaceable batteries for Dr. Pen Ultima A6. Both wired and wireless can be worked.<br> <br> What in the Box: One Dr. Pen Ultima A6 microneedling pen, 6PCS 36-Pin replacement cartridges, wall charger and cord, user manual, plastic storage box, Boeson brand latex gloves, and exclusive warranty card provided by Boeson.