【Design】Powered by the V-System, V-Select Cartridges features with precision positioning system and elastic membrane to generate the extreme performance for tattooing. It balances the tension of the membrane to present smooth and optimum saturation on the skin in every hitting. | 【Positioning System】EZ Tattoo Cartridges exclusive precise positioning system insulates the vibration of the needle for added precision to create the exact movement and instruct the exact pixel the way you want. | 【V System】With the V system, the potential ink splash problem has been 75% reduced and the new (whole round) cartridge shell design will provide an extra 20% ink storage,more ink goes to the skin and less ink being wasted. Flexible yet sharp and strong, allowing you to tattoo perfect crisp lines and soft shading with minimum trauma. | 【Safety and Sterilized】V-SELECT cartridges needles used light clear color tips shell, better visibility.Needle is made of surgical stainless steel, 100% EO gas sterilized and Individually packaged. Low profile housing & better ink flow & shaped on the inside,Smooth edges eliminate additional trauma. | 【After-Sale Service】If you have any problems or suggestions of our tattoo needle cartridges welcome to contact us. we will help you to solve your problems within 24 hours.