Ishua 12pcs Nylon Hair Pointed-head Tip Paintbrush Watercolor Oil Painting Supplies Artist Paint Brush Set Purple Artist Brushes for Watercolor, Acrylic and Oil Painting. Round Pointed style with size: 1#/2#/3#/4#/5#/6#/7#/8#/9#/10#/11#/12#/ Package Content : 12 x Painting Brushes Do not keep dry brushes in a pail or pot with their bristles resting at the bottom, because the bristles may bend and stay in that shape, thus ruining your brush. If you are keeping them in a pot, place them with the bristles up and handle down Do not keep your brushes immersed in water (after you are done painting) for a long time, as the adhesive holding the bristles may get disintegrated, causing the bristles to fall out.