Used once all sides of brush pictured. 2.1" barrel Good for: Use at the crown and back of the head, along with middle sections of a bob. Perfect for creating a wavy blow dried look. Benefit Ingredients: Natural Boar Bristles Ergonomic Handle Handcrafted Wooden Core Pro Tips/Tricks: How to clean brushes: Use a comb to relieve of stray hairs and dry shampoo to rid of oils. Do not soak these in water.