This is a microneedling pen by Korabeauticals! 5 speeds and depth is adjustable to 2.0 mm. This bundle includes SIX boxes of sterile cartridges - each box retails for $25! Everything you need to get started on your journey to collagen-boosted, glowing skin. In like-new condition, only used once. Charges via universal USB-C cord (not included). I paid the tariffs so you don’t have to! Cartridges are 16 pin, 33g sterile stainless steel. This pen also accepts Dr Pen M8 cartridges.