The Sky's the Limit! Unlock a rainbow of creativity with the Ritzy Rainbow™ stacking toy. Featuring five flexible arches in assorted colors and sizes, this toy helps baby develop hand-eye coordination, cognitive reasoning, and fine motor skills as they stack, nest, sort, and play. 5 arches for stacking & nesting. - Made of TPE - soft, flexible plastic material. - 5 arches for stacking & nesting. - Helps develop hand-eye coordination. - Early learning STEAM toy. - Hand wash with mild soap.