Niji Waterbrush, Set of 3 (Small, Medium, Flat) are great for portable, convenient, and perfect for painting on-the-go! Simply fill the reservoir with water, screw on the tip, and youre ready to paint wherever you are. Eliminates the need for a free-standing cup of water. This set of 3 waterbrushes features 1 flat brush for ending, one medium brush capable of great line variation for sketching and brush lettering, and one small brush for details. All packaged in a clear travel case.