Check the listing for details. Tattoo Needle Disposable Sterilized Cartridges RL RS M RM Round Liner Shader. Condition: New. Listed at 8.81 USD. About this item This tattoo cartridges needles diameter: #12. Polished, long taper; reliable for all-purpose work. One piece needle and plunger overmold allows for maximum stability and control. Membrane mechanism prevents ink spitback. The membrane and tip of these needles allow artists to enjoy a more fluid tattooing procedure; Compatible with all rotaries/coiled machine, pen style tattoo machine. Ethylene oxide (EO) gas sterilized and individually packaged; single use only Indentation at tip enhances ink flow and saturation. High quality silicone to keep the needle elastic. Cartridges body with transparent that allows you to see all of your inner and quantity of ink that goes into the nozzle, Unexpected surprise. Compatible with all rotary and pen style tattoo machines, as well as Hawk,Biomaser,BMX,TATELF machines and grips.