Feature: 1. 1. Challenge Game Toy: Teens and adults aged 14 and up will enjoy building their own 3D wooden safe. Creating the safe is challenging and may take a few hours, depending on your pace and patience. Once you’ve finished, you will have a place to store valuables safely, with the pride of constructing a unique piece. 2. 2. Accurate Cutting: Made from durable plywood and birch. The 179 pieces includes are cut for precision, so your pieces will fit together to be engineered without an issue. No glue is required for constructing your Model Safe Kit for the parts to fit together tightly, but some sanding may be required. 3. 3. Treasure Box: This 3-D puzzle is classified as medium level difficulty and requires meticulous attention to detail and accuracy when assembling the accurate-cut plywood and birch wood pieces. Use this puzzle as a brain teaser and crack the code with a mix of slow knob twists and carefully listening to tumbler movements that will open the lock. 4. 4. Sense of Accomplishment： Building this kit can be engaging and rewarding for the family to complete together. The complexity of this kit will bring families together for hours to create something truly unique to display in their home. This model is a perfect idea for handyman or anyone who enjoys woodworking. 5. 5. Best Decoration: This kit is not only functional and fun, but it's designed beautifully, too! The three dimensional wooden puzzle has decorative designs that look captivating in the finished product. Display a truly unique wooden piece on your desk, shelf or nightstand. Specification: Material: wood Size: about 17 * 17 * 17cm / 6.7 * 6.7 * 6.7inch Package List: 1 * Building block set (need to assemble by yourself) 1 * Instructions Note: Due to the different monitor and light effect,the actual color maybe a slight different from the picture color. Please allow 1-2cm differs due to manual measurement.