Please check your original cartridge if it is the same before purchase. 
Notes:Package only include cartridge,not include machine!
Selection Guides(Only for suggestion):
--12 pin: repair acne pox pit, remove acne, eliminate stretch marks, wrinkles.
 
--36 Pin: whitening, watering, spot removing, skin rejuvenation, shrink pores.
--42 Pin: spot removing; repair acne pox pit, skin rejuvenation, shrink pores.
--Round Nano: Nourishing Skin without Pain, Whitening, Moisturizing, Removing Spots, Tendering Skin, Shrinking Pores, etc.
Bayonet Needles Cartridge For Dr machine A6 Micro Needle Replacement Head - Picture 2 of 18