SAFETY MATERIAL: Made with medical grade stainless steel 316L, each tattoo needle comes individually packaged in a sterile blister pack and individually stamped with expiration dates. Each tattoo needle is for single use only. GREAT DESIGN: The tattoo needles is no bent, extremely sharp, is a must tattoo supplies for any professional tattoo artists. Standard-length to fit almost all tattoo needles and tubes combo, tattoo kit. Fit most machines and guns for all your tattoo needs. HOW TO USE: Round Liner Needles is used for fine lines and detailed work. Round Shader Needles is used for shading, blending and detail work on straight line work such as lettering. Magnum Shader Needles is used for packing in color, filling large areas and shading. EASY TO USE: Holds ink, flows consistently, gets constant line/shade, moves as smooth as pencil moves on a piece of paper. Our Brand focuses on the design, manufacture and sale of tattoo products, eyebrow tattoo products, and permanent makeup tools.