This is my first time using a micro-needling pen. I was intimidated about using one, so I hoped the instructions would be self-explanatory. Dr. Pen Ultima M8S Microneedling Pen works very well; however, the instructions could be more straightforward. The instructions specify what settings to use on each part of the face face, but there's no mention of how long or at what frequency. The kit comes with a pen, a case, a charging cord, an AC power adapter, and nine needle cartridges. The pen has one button where you turn on the pen and increase the speed by pressing and holding. The pen runs smoothly and quietly. I tested it on my forehead, and it left my skin red. I did not bleed or bruise.