From the Manufacturer Early Childhood Educators desire bulk quantities for use with multiple children. Cap less. They tip and tilt but won"t topple. Product Description 18 months & up. Unique delivery system allows markers to dry and be rejuvenated. No caps needed! Cute characters will up right themselves if tipped over. Features full palm grasp and superior washability. 18 count classpack in nine different colors: red, green, brown, yellow, purple, pink, orange, blue and black.