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Enjoy an easier version of Gearjits and build an intricate, sound activated wooden dinosaur that moves and roars. Made from laser-cut wooden pieces, this 3D dino puzzle is part architectural genius, part engineering marvel, featuring the skeleton outline of the king of prehistoric predators. Once you assemble all the pieces, use sound activation to make the dinosaur robot move forward or turn. The battery-operated mechanics include a sound chip that adds realistic roars to your roaming dinosaur. • Build a beautiful, working 14” long wooden T-rex with no glue and no tools!• Awe-inspiring finished form well beyond the norm for construction toys• Combines all the benefits of traditional building sets with principles found in leading STEM toys• Develops fine motor skills, creativity, perseverance and dexterity• Includes 74 pieces and detailed assembly instructions