These brushes are Designed to be an extension of your hand, giving you superior control for dependable results time after time. The Bonn brushes Use an exclusive blend of the finest bristle hair and synthetic filament hair. The hair is shaped into a bundle by hand and tied. The flat ferrules flatten the bundle to form a perfectly even broad stroke and are then glued into the ferrule. The nickel-plated ferrule of the brush tightly holds the brush head to the handle and is affixed additionAlly with stainless steel staples. The tightly secured bristle bundle and ferrule reduce bristle hair shedding on Painting Surfaces. The Bonn hair blend is very durable and holds up to All Surfaces, even rough and irregular ones! This Paint brush can be Used for anything from Acrylic and oil Painting to Watercolor and large scale area Painting. These are very sturdy, making them a great brush for Travel or even a great gift to an artist. Each Bonn Bristle Blend Mottler is Handmade in Germany by highly trained artist brush makers.