2 years & up. Ultra-Clean Washable Tripod Grip Stampers are perfect for the beginning artist. The triangular shape is easy to grasp while stamping out three different shapes (circle, square, and triangle). The triangular shape also prevents stampers from rolling away and getting lost. Includes three stampers with caps in washable ink colors (red, yellow, blue) for easy stamping and clean up. Single contains 3 stampers and the classpack includes 24 stampers in 3 colors.