Explore the fascinating world of geology and collect rare gemstones! This kit has everything you need to dig, explore, study, and collect. Each digging block includes 10 collectible stones. Learn about the stones as you see how many You can collect. Includes digging block with tray, digging tools, brush, collector box with labels, activity booklets, and write & wipe chart. Perfect for any home or classroom. An original Ben Franklin toys STEM Toy. Ages 5 +.