Colorations® Natural Brush Classroom Set is the perfect classroom brush set! Super classroom set of 72 brushes maximizes creativity, versatility and organization! Natural bristles with top-quality wooden handles Includes 12 each of 6 styles: 1" easel brush, 1/2" easel brush, size 12 watercolor brush, size 6 watercolor brush, round chubby brush and flat chubby brush Durable, plastic storage tray with lid for easy cleanup and keeping Tray measures 17"L x 12-1/2"W