Features:It's safe and mild to your body.Easy to operate, very convenient.You can create your own body art with these tools.Popular style and high-quality body piercing jewelry.Specifications:Quantity: 1PCMaterial: surgical steelThickness of the pin: 0.8mmHow to use:1.-The operator shall wash hands, wear disposable gloves if possible.2.-Use fingers to rub earlobes gently for 45 seconds, to make the earlobes numb; then use antiseptic cloth to clean the earlobes.3. -Open the package, put the unit on the earlobe, with thumb on the end of the bolt.4.-Use thumb to push the bolt gently, to close the U shape gun body, adjust to locate the pinpoint.5.-The thumb increases strength on the bolt, until the wings on the bolt broken suddenly and push the ear stud through the earlobe suddenly and attach into the ear stud foundation.6.-Release the thumb to let the U shape gun body open, pull it away from the earlobe gently, using your fingers to hold the head of the ear stud may help. The ear stud will be left on the earlobe.Note: 1.Please allow 0.1-0.3cm differences due to manual measurement, thanks.2.Please understand because of the light irradiation or computer display difference, so I can't guarantee photos and real color is 100% the same.