describe: Features: 1. Healthy sterile ear piercing gun 2. Individually packaged and sterilized 3. Disposable use, no cross-infection, no inflammation 4. Simple operation and convenient positioning. How to use built-in stainless steel earrings 1. Operators should wash their hands and wear disposable gloves if possible 2. Gently rub the earlobe with your fingers for 45 seconds to numb it; then clean the earlobe with a sterile cloth 3. Open the package and place the device on your earlobe, as shown in the picture 3. Place your thumb on the end of bolt 4. Gently push the bolt with your thumb, close the U-shaped gun body, and adjust to the positioning point 4. The thumb increases the force on the bolt until the wings on the bolt snap off and suddenly push the earring past the ear lobe and attach to the earring base6. Release your thumb to allow the U-shaped body to open and gently pull it away from the earlobe. It may be helpful to hold the head of the stud with your fingers. The earring studs will stay on the earlobe Material: Medical grade stainless steel and plastic Package Contents: 1/3/6 pieces disposable ear piercing tools