[OFEYLE TATTOO NEEDLE - The tattoo needle cartridge are made of premium 316L stainless steel which has excellent durability and safety. Sharp needle tip precise craftsmanship capable of achieving optimal performance providing a reliable and smooth tattoo experience making it a trusted choice for tattoo artists TRANSLUCENT SHELL DESIGN - The translucent body of our cartridge needles allows for clear visibility of ink flow enabling tattoo artists to monitor the process closely and giving greater control and precision during the process enhancing confidence and accuracy in each tattoo USE WITH CONFIDENCE - Each needle is sterilized with 100% EO gas and individually packaged to ensure the highest levels of safety and hygiene. It can be directly taken out of the packaging for use providing you and your customers with a certain level of peace of mind ANTI-BACKFLOW PROTECTION - The tattoo cartridge is equipped with silicone membrane which can prevent ink backflow has strong rebound force smooth needle flow fast coloring ensuring a clean and efficient tattoo experience allowing tattoo artists to enjoy a smoother tattoo process WIDELY APPLICATIONS - OFEYLE tattoo needles liners models are complete with various standard sizes to choose from including Round Liner Round Shader Round Magnum Magnum， It can meet the different tattoo needs of tattoo artists and is compatible with most tattoo pen machines and grips suitable for permanent makeup eyebrows lips Microblading and other tattoo styles]