24 CRAYOLA COLORS: This set includes a diverse range of classic Crayola colors including primary secondary and even tropical shades! WASHABLE CHALK FOR KIDS: Washes clean from sidewalks and driveways. For fast and easy cleanup use a water hose to spray away the color. Manufacturered by Crayola. ANTI-ROLL CHALK: A safe and convenient choice for kids this chalk has a special anti-roll shape to prevent it from rolling down driveways or other inclined surfaces. Kids can keep their chalk close at hand as they draw fine lines and broad strokes. FOR BIG BOLD OUTDOOR ART:Go big and bold with Crayola Washable Sidewalk Chalk. Ideal for sidewalks and driveways this set gets kids outside for artistic imaginative fun.