VEVOR Professional Microneedling Pen 6-Speed Electric Beauty Pen with 20 Needles

VEVOR Professional Microneedling Pen 6-Speed Electric Beauty Pen with 20 NeedlesVariable SpeedReplacement CartridgesHow To Use the Microneedling Pen?Revitalize Your SkinEnhanced Safety and ReliabilityVersatile and Portable OperationAdjustable Needle Length: 0 - 2.5 mm,Battery Capacity: 380 mAh,Item Model Number: M8,Replacement Cartridges: 6 PCS * 16 Pin + 6 PCS * 36 Pin + 6 PCS * 42 Pin + 2 PCS * Nano,Speed Levels: 6 Levels,Product Dimensions: 5.5 x 0.8 x 0.8 in / 141 x 21 x 21 mm,Net Weight: 0.77 lbs / 348 g,Main Material: Aluminum Alloy