AQUA BRUSH DUO is a pen with a brush effect for artists, designers, and for amateurs of all ages. The fibre tips are extremely strong and do not fray. There is a broad tip on one side, which allows brush-like techniques. Fine lines and drawings are easy to create using the other side of the AQUA BRUSH DUO. Allows you to create perfect pictures, plans, etc. The inks are water-based, free from hazardous solvents and can be mixed.