Blopens are the ultimate airbrush fun for kids. Blow into the pens from the top, and the color comes out at the bottom. With the four included stencils, you can quickly create small and large works of art. The blowing pens impress with their vibrant colors and easy application. The high-quality plastic prevents diffusion. Suitable for children aged 4 and up. Accidental inhalation of the color is impossible due to a safety membrane. Tip: Unused color can be reactivated with water and vinegar.