This 4" Single-Thick Brush is manufactured with 100% Un-Dyed hog bristle in a plated ferrule and is held together with an epoxy set for solvent resistance. With our ability to buy this product at high volumes, we are able to give you the lowest pricing possible. You can use this brush for various painting projects such as staining, painting or cleaning. This is a great inexpensive brush that you will receive great results with.