How to use Waterbrush

Answer 1

A waterbrush is like a combination of a fountain pen and a brush. It consists of a head with the brush on it and a handle that's a plastic reservoir that holds water. The two parts screw together and apart very easily. A slow, constant trickle of water comes down the brush's bristles as you use it, and you can get more by squeezing the reservoir. My travel sketching set wouldn't be complete without one!