Size Numbers for Nylon Bristles: Round: 2, 4, 6, 8, 10, 12, 18 Flat: 2, 4, 6, 8, 10, 12, 18Size Numbers for Hog Bristles: Round: 2, 4, 6, 8, 10, 12 Flat: 2, 4, 6, 8, 10, 12Size Numbers for Pony Bristles: Round: 2, 4, 6, 8, 10, 12 Flat: 2, 4, 6, 8, 10, 12Colour:Photo ColorMaterial:Wood+nylonPackage Contents:38 * Paint Brushes SetOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.