Features: 1. Amazing details and wonderful DIY experience; by letting children assemble this product, they not only exercised their hands-on ability and creativity, let children enjoy the joy of assembly. 2. Using high-quality metal materials, laser cutting ultra-precision high-quality metal models, no glue is required, just connect according to the assembly drawing through screws. 3. You can assemble a mechanical flamen model, or you can use existing parts to DIY other shapes according to your personal ideas to create your own unique model. 4. Stainless steel parts will have some slight scratches on the surface is normal, does not affect the overall appearance. 5. This is a perfect gift. It is a special gift for your friends, family and children. Suitable for collection and decoration. 6. Have fun and accomplishment through DIY assembly, the product is very beautiful. Each joint is movable. 7. Can be assembled with mechanical robot shape. After assembly, the mini size is about 16x9x17.5cm. 8. Suitable for people over 14 years old or children who under 14 years old need to play with parents. 9. A total of 467Pcs, it takes about 5.5 hours to assemble, depending on personal ability. 10. The edge of the product is sharp, please do not play with infants, so as not to hurt. Specifications: .Material: Stainless Steel + Iron + Copper .Product Weight: 570g Package Content: .1Set x Puzzle Model .2 x Screwdriver .1 x Nipper Pliers .1 x Mini Sleeve