Our "3D Metal Puzzle" products are perfect for those who love a challenge and are looking for a unique, hands-on building experience. Each kit includes high-quality metal pieces that can be easily assembled to create intricate and detailed models. Whether you're an experienced model builder or just starting out, our kits are suitable for all skill levels and provide an engaging and educational activity for both children and adults. They make a great gift for children and can help develop children's intelligence through problem-solving and critical-thinking skills. Sydney Opera House: The world-famous performing arts center, located in Sydney, Australia is another icon of global architecture. Recognized as one of the 20th century’s top ten architectural achievements, its design echoes the appearance of a boat’s sails, reflecting the history of Sydney as a major port. This intricate metal sheet model kit builds to create a stunning replica of this architectural marvel. Specifications: Smart Metal Assembly 3D Model made from high-strength stainless steel. Delicate, sharp, and shiny details are created with advanced laser-cutting technology. The 3D Metal Model comes with a detailed and easy-to-understand instruction manual, suitable for all types of players from inexperienced to long-term. Unique and novel products to help decorate desks, bookshelves, and fish tanks, and make meaningful gifts without fear of touching goods. Steel assembly 3D model is a healthy game that helps reduce stress extremely effectively after every hour of working and studying, making the brain always fall into a state of stress and discomfort. Assembling tools are recommended but not included. If you need tools, they are available in our store. Click here to buy! Package includes: 1 x 3D Metal Puzzle Size chart (cm) (1cm = 0.394 inches) 13x9x6 cm (5.11x3.54x2.36 inches)