by EK Success. Create a modern day Monet with these portable water brushes! This medium tip size is for those who wish to paint anywhere at any time. Their lightweight design permits portability and eliminates the need to carry water bottles. Simply fill the brush barrel with water reattach the brush tip and as you paint adjust the pressure on the squeeze barrel for a drier or wetter palette. Use on cardstock, with stamping cards, great with watercolor markers or pencils.