SERIES - KW "The Maestro Series" The KW long white nylon hair brush is unsurpassedfor workmanship, performance and durability. With seamless nickel plated brass ferrule and long polished handle, it is the standard by which all other synthetic brushes are measured. Three shapes Flat, Bright, Round. Sizes: 0, 2, 4, 6, 8, 10, 12.