One side of the pen contains ink in traditional colors, while the other side features ink in pastel colors. With this solution, you can achieve two colors with one pen, saving space in your pencil case or on your desk. Both pen tips produce vibrant colors, and the ventilated cap is safe if swallowed. The ink used is non-toxic and easily washable from most surfaces, including textiles. The product complies with the EN 71-3 standard.