?DURABLE MATERIAL?Cartridge needles are made of high-quality grade PC material and stainless steel. Compared with ordinary PVC material, tattoo needles are stronger and more transparent, so they are more durable; and the needle tip is sharp, which is easier to pierce the skin and will not cause skin damage. ?HIGH COMPATIBILITY?The tattoo needle cartridge is of standard size, compatible with most of handles and tattoo pens, and tattoo artists can switch smoothly during use. The unique design of the needle edge allows tattoo cartridge to absorb more ink, which is a good choice for shadering and linering. ?BACKFLOW PREVENTION DESIGN?The interior of the tattoo needles has evolved from a spring to a rubber stopper, which effectively prevents the ink from flowing back and damages the machine; at the same time, the rubber stopper also fixes the tattoo needle to prevent it from shaking. ?PACKAGE AND SIZE?Tattoo cartridge needles box contains: 20pcs * 1205RL, and the size is 63 * 18mm. For safety, each short-handled needle is E.O gas used and individually packaged for easy access. When using, you just tear open the package and dip the tip of the needle into the paint. ?BENEFITS OF TATTOO NEEDLES? The transparent shell allows the tattoo artist to observe the ink discharge at any time. The design of the tip effectively ensures the normal flow of the ink and prevents the interruption of the flow; the high-quality material keeps the needle tip elastic and easier to control.