Discover the Dr. Pen ULTIMA M8 Replacement Needle Cartridges, featuring a 0.18mm needle, bayonet locking slot, and are sterilized for single use. Offering different needle counts and styles, the Dr. Pen Ultima A6S Replacement Needle Cartridges are also compatible with the Ultimate M8 Pen thanks to the secure triangular bayonet slots.
Comes in a pack of ten (10pcs)