The Size 8 Goldenedge Professional-grade Oil & Acrylic Synthetic Filbert brush is made with several sizes of Toray filaments. This brush holds a large capacity of paint and has unsurpassed spring. Characteristics of a traditional sable hair brush are preserved in this professional synthetic variant. A Goldenedge brush is less likely to shed or lose its handle than any other artist brush on the market. Exceptionally durable, it maintains a perfect shape and extremely fine point even with repeated use. Filberts are a perfect compromise between rounds and flats. They are shaped like a flat with a curved end allowing for more flexibility than a flat. The side can be used like a round and the broad side like a flat. The Filbert brush was invented by the Impressionists in order to have the feeling of a worn-in flat with maximum flexibility, and it has become a favorite of painters everywhere. Since 1905, Grumbacher has been a brand trusted by students, professors, art conservationists, and professional artists throughout the United States.