Discover the captivating mystery of the **Wooden City 3D Puzzle Treasure Chest**. This intricate mechanical puzzle blends complex design with enchanting storytelling. Carefully crafted, each latch and hinge invites you to embark on a fascinating journey of problem-solving to uncover its secrets. This puzzle goes beyond the ordinary as it offers an engaging experience, ideal for history enthusiasts, puzzle lovers, and those who appreciate fine craftsmanship. - **Experience an Intriguing Journey**: Unlock the treasure chest with gentle precision, mastering the logical challenges hidden within. - **Effortless Assembly**: Each piece seamlessly fits, ensuring a smooth assembly process. - **Eco-friendly Materials**: Made from high-quality birch plywood, these puzzles provide a sustainable and enjoyable crafting experience. - **Mechanical Marvel**: Explore functioning mechanical components such as gears and rubber band motors. - **No Glue or Tools Required**: Assemble this functional model without the need for adhesives or tools. - **Detailed Craftsmanship**: Every element is designed with precision and attention to detail. - **Easy Instructions**: Access assembly guides via a downloadable QR code included on the packaging. **Technical Parameters**: - **Assembly Time**: Approximately 3 hours - **Difficulty Level**: 3.5 out of 5 - **Finished Dimensions**: Approximately 12.7 x 7.4 x 8.8 cm **Note**: To ensure optimal performance, you'll need a utility knife, scissors, sandpaper, and a candle for waxing components (not included). Wax the axles and gears for smooth operation.