🌈☀️【High Quality】: The material of the tattoo needles is 316 stainless steel, which is resistant to high temperature and pressure, and has certain strength and toughness, not easy to rust, and good safety. It's very good for color in or shading tattoos. , 🌈☀️【Pre-Sterilized】: All tattoo needles are pre-sterilized. High temperature and high pressure ethylene oxide sterilization, safe and reliable, can rest assured use.Date of sterilization and expiration are printed in the back of packaging.