About Dr.pen M8S: 100% Authentic & High Efficient: Ultima M8S is the latest microneedling device which is designed and manufactured by Dr. All our products are 100% authentic. You can verify it by scanning the security label on the box. Wireless Dr M8: Electric microneedling pen, rechargable, 14 Cartridges in Package: 12pcs mix pins *(0.18mm) , 2pcs 12-pin (0.18mm). Led Screen: Will show the speed of the machine, 6 levels speed.