Mudder Watercolor Brush Pen Water Paintbrush, Assorted Brush Tips, 6 Pieces Durable Nylon Brush: These pens have nylon brush tips which are soft and durable. It allows you to create fine, medium and daring strokes along with sleek consistent lines Easy to Squeeze Barrel: Control the ink or water flow with just a squeeze of the barrel. Blend with water or add ink to barrel for fast, easy and fun painting 6 Different Brush Tip Sizes : 3 pack fine brushes and 3 pack flat brushes in bold, medium and fine point size. It gives a sensitive response for delicate lines or pools of colors Easy-to-clean Brush Pen: These brush pens are easy to clean, just washing it under water after used. Note: This set of water brush pens are not come with water in it. You can fill up the barrel by yourself to create a watercolor painting Versatile Brush Pen: Use Mudder water brush pens with watercolor or ink to create beautiful paintings or calligraphy. Great for solid colors or powdered pigment.