For use with Magic Pens 9+1 and Felt-tip Pens 9+1, The colour-changing marker can be used as a secret ink, which only becomes visible after being painted over with the magic markers. Features water-based inks with a faint odor. The dry-out rate is approx 5 % per month. Free from formaldehyde and other harmful substances. The pH is ca. 6. The specially designed tip cannot slip inside the pen or bend under pressure.
All ingredients comply with the requirements of Euro Norm EN71, Part 3. The water-based inks contain glycerine, liquid vaseline, and nontoxic color pigments. Euro Norm EN 71/9, American Norm ASTM D 4236.
They are also vegan, gluten-free, nut free and lactose free.
ökoNORM is a unique producer of ecologically friendly nawaro products. The abbreviation nawaro comes from German “Nachwachsende Rohstoffe“ that means “renewable raw materials”. Nawaro products are made from sustainable resources, environmentally friendly and absolutely non-toxic. They pay a close attention to thorough control over the quality and environmental impact of their products to guarantee healthy and safe products.
Most of their products have been distinguished as “very good” or “good” by the consumer magazine ÖKO-TEST and have received the “spiel gut”(good toy) certificate.