The highlight board features a slight curve on two sides to better suit head shape and a handle that allows for comfort and stability. With both a smooth and textured side, the one side is textured so your hair stays on it without sliding off, while the smooth sides are great for padding the brush and testing color before you apply it to the hair. Just pull the hair you want to color over the board to get a firm foundation to paint on, since it has a grooved side for gripping the hair and pulling it tight so you can get an easy, straight section of hair for applying color or bleach. Creates strong base for painting and bleaching hair, easpecially those with long hair who needs stability. This board could also separates the hair from the rest of your hair and makes coloring much easier and neater. Sturdy and the way the bristles are cut actually really helps with coverage and not getting as much hairs stuck in the brush, and clean up nicely to reuse.