Works like a marker; perfect for use with watercolor. The barrel is ma de of durable yet easy to squeeze plastic with taklon bristles. Includ es small, medium and large.

Niji Waterbrush.
This small waterbrush is very versatile and makes a handy tool for stampers, artists and crafters. It hold 7ml of water.
This waterbrush pen has a soft plastic barrel which contains water. When you squeeze the barrel, water enters the bristles, thus eliminating the need for a separate water container. It also makes cleaning the brush between colors a breeze.

Durable nylon brush tip holds its point.
Soft, easy-to-squeeze barrel effortlessly stays in your hand.
Translucent barrel allows you to monitor water supply.
Fill with water to blend, or add your favorite ink or dye.
Body Color: Blue
Body Material: Plastic

Holbaine watercolor pen The pen is a handy watercolor pen that can wash the brush at any time without using brushwork just by extruding water, if you put water in the handle (container).