Aquafine uses Daler-Rowneys unique formulation of thick and thin filaments, tapered to a point, as well as different lengths to become a remarkable imitation of natural sable hair.This special construction allows Daler-Rowney synthetic brushes to outperform all other synthetic brushes in point and stroke, and guarantees that the brushes will not split. They have excellent shape retention and longer life than natural sable hair.Fan Blenders are an attractive fan-shaped head used for subtle blending of colour on the surface and in dry brushwork for distant trees and foreground foliage.All System3, Aquafine and Georgian brushes benefit from the Daler-Rowney lifetime guarantee