Dr. Pen Ultima A6 Professional PlusDr. Pen A6 Ultima micro needling pen is used to improve the appearance of fine lines and wrinkles, scarring, stretch marks, enlaged pores, loose skin, hyperpigmentation and sun damage Up to 8000 RPM 5 Speed Level Adjustable dial with needle depth ranging from 0mm 2. 5mm allows treatment that adapts to your skin concerns More economical than the derma roller, you just need to recharge the pen and replace cartridges after each use With two