This activity set helps develop fine motor skills as children use the included hammer and chisel to crack open reusable plastic geodes, revealing colorful gemstones inside. The set includes gems in eight different colors and four distinct shapes, allowing children to practice sorting, matching, and counting skills. Designed for mess-free play, the durable plastic geodes eliminate cleanup concerns while introducing basic geology concepts. All components store conveniently in the included drawstring bag. Suitable for children ages 3 and older, this educational toy combines skill development with engaging discovery play.