Hape - Mr. Frog Stacking RingsMr. Frog Will Help Children Learn About Colors, Counting And Sounds! Stack The Different Rings Onto The Wobbly Base While Listening For Different Noises. Frog Themed Stacking Rings Includes A Stacking Base, Five Rings And A Frog Head The Various Rings Come In Different Colors And Textures. The Various Rings Come In Different Colors And Textures. The FrogS Head Works As A Clapper.