The Derwent Push Button Waterbrush Assorted Set of 4 comes with an assorted point & chisel tip waterbrushes for a wide range of brush strokes. Each brush has a durable nylon fibre tip which holds shape & point for continuous product use & comes with a protective cap. They also have a large water barrel with push button for easy to control water release to avoid drips & spills. These brushes are ideal to be used with watersoluble pencils and paints such as watercolour & inks. They are portable & convenient for indoor & outdoor use.