The Dr. Pen A6 Ultima Microneedling Pen is an at-home device. It has five-speed levels and adjustable needle depth, your microneedling treatment can be customized to your exact skincare concerns (based on disc, some included). Benefits of the Dr. Pen A6 Ultima Microneedling Pen has 5-speed levels and has up to 15,000 RPM. Used sparingly in great condition. Also included are individually wrapped 17 Nano needles and four 12 needles.