Quantity: Tattoo Needle comes in a box of 50 pcs Needle which is well sterilized and in individual blister packaging with expiry stamped on individual needles. Quality: Our tattoo needles are made of medical-grade stainless steel 316. This type of steel is strong, durable, and resistant to corrosion, making it an ideal material for tattoo needles. Needle Size: Round Shader Needles consist of a group of needles arranged in a circular pattern, similar to a round liner, but with a larger number of needles. Round shaders can range from 3 to 18 needles in a configuration and are used for shading large areas of a tattoo design. Needle Configuration: American Standard Round Shader Needles have multiple needle tips arranged in a circular shape, which makes them ideal for shading and blending in tattoos. Compatibility: These tattoo Needles work well with all kinds of tattoo coils and rotary machines. It's Standard Size and design makes it more compatible with your tattoo machine. Sterilization: EO gas sterilization which is very effective in killing a wide range of microorganisms, including bacteria, viruses, and spores. Our Tattoo Needles are EO Sterilized which is a commonly used method of sterilizing medical equipment, including tattoo needles. It involves exposing the equipment to ethylene oxide gas, which is a highly effective sterilizing agent.