About this item 5 Sheets (Mermaid, 4.75" x 2.7"in, 12 x 8cm) Durable, Waterproof and sweat-resistant. These beautiful tattoos typically last about 3-6 days. Can be removed with oil, makeup remover, or by scrubbing off. Safe to wear at the beach or in the shower or pool. Easy to apply in 10-20 seconds with just water and easily removed by rubbing alcohol, body oil, olive oil. Multifunction uses: Suitable for every kids and adult, You can apply them to your body or some smooth objects, for example, glass, tile, stationery, paper, stainless steel, plastic, present box, mobile phone shell, car. Tips: The normal product color is displayed during the day, and it will only emit light in a dark environment. It needs to be illuminated under the light to absorb the light source. If the light effect is not obvious, use the light for about 30 seconds. If there is no light source for a long time, it will gradually weaken.