1. Process: water transfer printing 2. Production method: semi-manual and semi-mechanical 3. Soybean extract ink, plant raw material, children can also use it 4. Cosmetic grade AB glue, odorless, waterproof, wear-resistant 5. Special transfer paper for tattoos, clear printing and easy transfer 6. This luminous sticker shows the color printing effect during the day, and some parts will glow in the dark environment 7. It is necessary to irradiate and absorb the light source under the light first. If the night light effect is not obvious, you can use the mobile phone light for about 30 seconds 8. It is recommended to use it with UV fluorescent lamps for better and longer-lasting luminous effect 9. The luminous time is related to light and temperature, and it will gradually weaken without absorption for a long time 10. Size: 120x76mm