Dragonhawk cartridges features a sleeker, lighter design, providing a level of comfort and control never before seen in a needle cartridge. Perfectly shaped and they offer a configuration for every need. Highest standard QC process in the industry. Each needle must undergo a thorough 30 point inspection process before it can earn the Dragonhawk name. The cartridge finger ledge gives you the perfect place to rest your finger while working. Cartridges come with membrane to prevent ink leakage to the tube or machine.