Materials: Metal Product composition: 8 different puzzles / Set This metal puzzles set consists of 8 classic Metal Puzzles, all of these puzzles are very classic and popular, very ideal for kids and adults. Exquisite processing and high quality Come with 8 different puzzles with different level of difficulty Metal brain teaser condenses with traditional Chinese culture and they are quite interesting Good for creative thinking and improve both your IQ & EQ After getting each puzzles solved by yourself, then you will get achievement, but we still attach a diagram to satisfied with some people. Ideal gift for children