Natural texture and superior 保水 force in the human equivalent. Including about 17% more water than the 100% Squirrel Hair Brush. * No. 16 Size Compared with the numerical "intent, restore power, durability and comfort features" such as, nylon hair. With these features match with your new 画筆 is something to expand the width of the watercolor technique. Bristle Material: Nylon hair (new development PBT 倦縮 混毛)