This product: outstanding quality! Wonderful! High-end atmosphere However， assembled have certain difficulty! Challenge your wisdom; Test your thinking logic; Test your patience and endurance In fact， after efforts to get will cherish! After thinking about the conclusion of only the most incisive! ... It is the best ornament， but also the most beautiful collection! Smart you， don't miss oh! ... Material: Nano metalProduct brand：HearTogetherWeight: 135 gCategory: three-dimensional jigsaw puzzleSpecification: 12.2 * 17 cmApply age: 7-10 years oldVery important: 3 d metal model precision， according to the complexity of the model， metal assembly work will take 30 minutes to several hours to complete， so please don't be irritable when assembling， want to have patience oh， small parts must use pliers clamp down one by one， not directly to break with the hand， otherwise easy to cause fracture operation parts.