Set of 3 brushes with a Water Brush Tombow tank Brushes with a water tank are perfect for watercolor or sharp materials. They also work perfectly with distress inks for scrapbooking. These brushes contain a water tank that makes working with it very convenient. When the tank is pressed, the water reaches the bristles, making it unnecessary. Bring a water container. Brush cleaning is very simple, you just have to squeeze the tank and you will leave. all the water. Brand: Tombow