EXPLORER VEST: Kit includes a grown-up styled explorers vest complete with pockets and Velcro closures to keep tiny treasures safe and organized. Made of 65% Polyester/ 35% Cotton with an easy and secure zipper closure vest fits most children ages 4 to 9. DIG IT UP AND PLAY: Simply soak the 3" clay egg in water and then carefully chisel away the shell to excavate the dinosaur inside. Once your dinosaur is excavated simply rinse off remaining clay and your child will be ready to play. Manufacturered by MindWare. EXCAVATION GUIDE: An excavation guidebook is included to learn more about your dino discoveries. Learn how to classify each dinosaur by similar traits or characteristics and create your very own diorama. INCLUDES: 12 individually-wrapped clay eggs 12 chisels tools 12 instruction sheets and an excavation guidebook. Includes (1) explorers vest! (For ages 4 and up). TOYS THAT TEACH: Experience the excitement of discovery like a real paleontologist as you excavate 12 unique dinosaur eggs! Learn how to identify each extinct species using the Excavation Guide.