Bianyo 24 Double Tip Aquarelle Brushes Set Soft brush tip markers to get wide smooth strokes and a thin tip for straight lines, writing or detailed illustrations.  Perfect for colouring books, comics, lettering, anime and so much more. Include 24 vibrant colours, perfect for colouring, illustrations, drawing, calligraphy and so much more.  High quality, long-lasting. Contain 24 markers with brush tips of 1-2mm width and a fine tip of 0,4-0,8 mm width. You’ll get a watercolour effect by diluting with water using the brush. Water-based ink, acid-free and non-toxic.