The magic markers have vibrant colors and can draw in the color of their cap on many surfaces, such as paper, cardboard, and wood. By painting over the lines or areas drawn with the magic marker using the white color-changing pen, the color magically changes to that of its cap.

The color changer can also be used as invisible ink, which only becomes visible when painted over with the magic marker. The water-based colors are completely non-toxic. They have a low odor, are free from formaldehyde, and contain no harmful substances (pH around 6). The values are well below the European standard EN 71, Part 9.

The markers dry out at approximately 5% per month. They can be refreshed with 2 drops of lemon juice or vinegar on the color pad by opening the rear cap. The specially designed tip cannot be pushed into the casing even under heavy pressure.