The EZ Tattoo V-Select cartridges have a safety membrane to prevent ink from flowing back into the tattoo machine housing, so your machine should be protected from damage caused by ink spills.The V-System developed by EZ Tattoo allows the needle to run cleanly and precisely to enable even the finest work. The V-System reduces ink splatter by 75%, allowing the V-Select needle module to work much cleaner.Thanks to the V-System, the ink is evenly dispensed and reaches where it should, namely the client's skin.100% EO gas sterilizedEach module individually packagedSurgical stainless steel needleTip ink flow20 pcs per pack