Budding fossil hunters will love these chunky, tactile skeleton pieces that fit together to create two iconic dinosaurs: the mighty tyrannosaurus rex and the armored ankylosaurus. Crafted from a durable stone mix, these fossils are perfect to bury in sand or soil for children to dig up and assemble, developing observation, spatial reasoning, and critical thinking skills. The sizes, shapes and number of pieces per dinosaur build progression, providing two different, exciting challenges for children as they put them together. Ideal to engage curiosity and to extend knowledge, children will love to discuss their discoveries, comparing the skeletons, their diet, habitats and size. Crafted from a durable stone mix, these fossils are perfect to bury in sand or soil for children to dig up and assemble, developing observation, spatial reasoning, and critical thinking skills. Details:Multicolor stone toneEach skeleton measures 8.5"–10" ( 220–260 mm)Set includes two skeletons (Tyrannosaurus rex and Ankylosaurus)Durable stone mixRaised bones create imprints in play dough for added tactile experienceFor ages 2 and upContents:Tyrannosaurus rex skeleton (4 pieces)Ankylosaurus skeleton (5 pieces)