Kingpin only offers meticulously configured PMU cartridges by brands like Cheyenne, TATSoul Envy, Bishop, Prime+, and Kingpin's own. Every needle in every cartridge is inspected for quality and uniformity before assembly. The importance of ink flow is considered and enhanced with every cartridge available on Kingpin's website. When shopping for high-quality permanent makeup cartridges, you are sure to find what you need here.