Manufactured with the finest pure Chungking white hog bristle hair, which are naturally curved. Heads are made with a special technique to utilize such original curve as to lie towards brush center. Ideal for oil and acrylic applications. The filbert shape gives the artist flexibility and spring for soft edge effects. Natural shape for many flower petals, leaves, birds and feathers. The interlocked bristle enables the artist to wear in the brush thereby ensuring their personalized painting styles are achieved. Long handle.