Article number: 4019427720015 View all from ökoNORM > View more: Pens > ökoNORM - Magic pen 9 colors + 1 secret writer Create magical works of art with these color-changing markers from ökoNORM. By going over the drawing made with the markers with the special pen, the colors of the drawing change - as if by magic! The markers can be used on many surfaces, such as paper, cardboard, wood, and so on. In addition, the color-changer marker can also be used as a secret ink that only becomes visible by going over it with the felt-tip pen. Natural Markers The markers are water-based, so they do not smell and are non-toxic. They are also formaldehyde-free and contain no harmful substances. Therefore, artists from the age of 3 can already use the magic markers. Product specifications Magic pen 9 colours + 1 secret writer Item description Magic pen 9 colours + 1 secret writer Item number 4019427720015 Colour Multicolour Suitable for age D - 4-7 Years, E - 8-12 Years Country of origin Germany Colours: black > red, brown > green, green > orange, green > brown, purple > pink, blue > yellow, brown > blue, red > yellow, yellow > red Contents: 9 colour change pens and 1 colour changer with ventilated safety caps Line width: 6mm Not washable: you can't remove stains from your clothes Tip: The pens dry out about 5% per month. You can extend the lifespan by adding 2 drops of lemon juice or vinegar on the back on the color tampon, Open rear cover cap.