Gordon's applicator brush has two sizes with two end styles (tapered and flat) to fit your needs. Fibers are mechanically clamped into the handle for maximum fiber retention so that no adhesives can leach out and contaminate surfaces being cleaned. - Brushes are available with Horse Hair (HH) or Hog Bristle (CK) material. Handle material for the 1005 is stainless steel, and the 1010 handle is zinc plated steel.