The luminous tattoo sticker is colored in the daytime, and it will partially illuminate at night after fully absorbing the light source. You would be the unique one on your party and you can scary your friends when in dark. They will be very happy to put these tattoos on the arms and hands with other children. With 98kinds of Halloween theme patterns our tattoos are the perfect goodie bag favors, party decorations and birthday surprises. How to use? 1) Cut out the design and peel back film cover. 2) Place tattoo face down on your skin. 3) Firmly press a damp cloth or sponge over the back of the tattoo. 4) Wait 20-30 seconds before s-l-o-w-l-y peeling the backing of the paper. 5) Let dry & That's it! Enjoy your temporary tattoo!! Recommend use: Luminous Halloween temporary tattoos can be stick on the waist, chest, neck, arms, back, etc. For better use, please do not covering it on the wound or use broken tattoos, and keep the skin clean before use. How to remove? 1 Rub the temporary tattoo with alcohol or makeup remover or cold cream or baby oil and then wait 10 seconds. 2. Rub again gently and repeatedly until the tattoo has disappeared or by scrubbing it off with soap and water. Caution:Do not apply to sensitive skin, near eyes or if allergic to adhesive. Also not recommended for children under 2 years old. Package Include: Luminous Halloween Temporary Tattoo * 10sheets