These Water brushes are such a convenient way to blend watercolour pencil drawings, tear and feather Mulberry Paper, or indulge in a little bleaching! (Keep well away from little ones if you keep bleach in any of them) The pack contains 3 brushes - small, medium and large. Each brush has a removable cap to help protect the bristles and prevent spillage. They're so easy to fill, just unscrew the top of the brush. Once filled, screw on the lid tightly and squeeze gently to release the liquid.