Escoda Arco 4338 Oil & Acrylic Badger Hair Paint Brush Fan; Size 4 Arco 4338 Fan Size 4 has a brush head that measures about 10.01mm Wide x 21mm Long Badger hair is an especially soft fiber with unique characteristics, particularly its combination of colors and its length and elasticity make it especially suitable for fan-shaped brushes, blends or the traditional shaving brush Escoda brushes boast trademarked tripled crimped ferrule ensuring a lifetime secure fit, unique curing process that locks each hair in place creating a permanent brush shape and all wooden handles are ergonomially designed and made from the finest brich wood available Escoda's ISO 9001/100 Cerification ensures that each brush is engineered and hand crafted to exacting standards and is supported by Escoda's Lifetime Guarantee against workmanship defect if purchased from an authorized dealer Since fine art brushes are hand crafted, please expect some variation to the listed dimensions