PENTEL Aquash Water Brush Fine Point Large Frh-b Point Large  (Set of 1, NA)

It's a lot tricky at first to get to know how much water will come out and when, and how to use squeeze for the best effect, but when paired with a little en plein air water cup, I did okay. I suggest using a spray bottle to wet the paints, use the water brush to add water to the palette, then use the brush to move paint to the palette. Was able to do wet on wet, as well.