Cartridges are the economic version MEMBRANE system cartridge needles for the professional tattooist with quality assurances, fits for all standard cartridge grips & tattoo pen machine. Light clear colors tip body, better visibility,Low profile housing & better ink flow & shaped on the inside,Smooth edges eliminate additional trauma. Mast Tattoo Innovation - Always at the forefront of the industry, Mast offers revolutionary equipment with a traditional sensibility that helps tattoo artists leave a lasting mark. Great for Tattoo & Smp - The Mast Cyber tattoo needles cartridges is designed to provide the most controlled tattooing sessions with reliable, consistent performance. It features an inner membrane to prevent ink spit-back, allowing for smoother, more optimal procedures, every Cyber tattoo needles has been tested multiple times for optimal performance Compatible All Tattoo Pen Machines - Compatible with any cartridge system grips and are available in Round Liner, Round Shader, Magnum, and Curved Magnum, all Mast cartridges are manufactured from high-quality disposable material; they are sterilized and individually packaged for single use only Tattoo Finger Ledge Cartridge Needle - Exquisite in every step of production,Make your tattoo work exceptionally smooth and joyful.