MASTERPIECES-Jigsaw Puzzle: 3d Pyramid. Prepare to experience the power and fun of building your own pyramid. From the ground up each piece reveals more of the hidden mysteries. Begin your pyramid with the base section: it's loaded with fun pyramid trivia and will guide you piece by piece. Start with a sixty-five piece base puzzle. Assemble the base first and read how to build the 3D Pyramid. The base is loaded with fun factoids; history and even the mysteries of the pyramids. The pyramid is made up of 365 interlocking real cork puzzle pieces for a tighter; stronger fit. Recommended for ages 13 and up. WARNING: Choking Hazard-small parts. Not for children under 3 years. Made in USA.