Available with an optimal precision-guided and anti-skid design, the Microneedling pen for sale from Dr. Pen is the M8 wireless derma pen kit. The unique derma roller consists of 10 pieces of 16 series 34 gauge thinnest Certified EO Sterile tip cartridges, offered with another 10 complimentary cartridges. This highly accurate derma pen offers the largest area of coverage with an effective glide facility, and no sticking issues. The product induces collagen through the superfine punctured micro-channels in the skin, thereby effectively functioning as an anti-aging and regenerating solution.