3D wooden puzzle Brontosaurus 41 pieces. 34.2x9.2x18.2 cm. •41 pieces. •Put all the pieces together and you can build your 3D puzzle. •It's the best brain boost you can get for a teenager or yourself. •It comes with detailed instructions that allow you to follow the construction process easily and directly. •Difficulty level: 3 out of 7. •Recommended for ages 8 and up. Not recommended for children under 3 years. Use under adult supervision. Choking Hazard: Contains small parts that may be swallowed and cause choking. Wood.