These colorful shapes can be stacked, sorted, counted and arranged into fun sculptures by your budding artist. This flexible developmental toy grows with your baby and helps build important early skills. 7" diameter, 4" high Expertly crafted of recycled rubber wood and finished with brightly colored nontoxic paint. Encourages a child's creative impulses. Provides loads of fun arranging and stacking the brightly colored arcs into various shapes. Toddlers will learn to notice sizes and colors, and to develop eye-hand coordination.