Ideal for watercolors, acrylics, and other media, this assortment of Rounds and Flats includes nine Rounds deal for watercolors, acrylics, and other media, this assortment of Rounds and Flats includes nine Rounds (Sizes 1, 2, 3, 4, 5, 6, 8, 10 and 12) for filling in details and small areas, for controlled washes, and for making thin or thick lines.