This set of geodes lets kids break open rocks to reveal sparkling mineral treasures. Includes a full-color guidebook, safety glasses and geodes in a variety of types and colors. The size of a tennis ball, these geodes are truly breathtaking! Once you break them open, vibrant colors and shimmery crystal textures emerge. Geodes are an amazing natural marvel, and this set lets you witness the crystal structures up close. • 2 Jumbo Geodes, instructions• Encourages curiosity, problem solving, and interest in geology

Age Recommendation: Ages 8 and up