The Oscoda Series 4050 Modernist Brushes are made from a custom blend of patterned synthetic fibers containing all the attributes of natural Mongoose hair. This blend imitates its natural appearance and feel, offers good spring and an immediate response to the brushstroke. A perfect choice for the professional or seasoned oil and acrylic artist. Oscoda brushes continue to be made by hand by the Oscoda family as they were since 1933. This is a long handle size 22 bright brush with bristles measuring a diameter of 22. 3mm and length of 29mm.