Jacksons Studio Synthetic Watercolour Brushes. (Lower the number the smaller the brush) Their range is from 0 - 24. Brush shapes are Round, Flat and Rigger (great for trees and lines) Artist tip: you need soft brushes for watercolour applications not bristle brushes
 
Sizes included in set: Round size 6, Flat 3/4" and Rigger Size 2