An art brush with a difference, this one has a mini water tank. It’s perfect for pairing with the kitpas colours. Perfect for using with the kitpas crayons, the Water Brush Pen lets little creatives mix and blend colours on the page. Simple to use, just fill with a little bit of water and then squeeze to get droplets onto the page. It takes away the need for water cups and separate brushes, but is just as effective and creates less mess too.