About This

• 【9 Wooden Brain Teaser Puzzles】The ancient traditional Chinese wooden brain games, called Kong Ming Suo, has very mysterious mathematical principles and logical principles. The design is very clever, and assembly requires careful observation and thinking, as well as analysis of its internal structure. A fun challenge for adults.
• 【16 Metal Wire Puzzle Set】Includes 16 different styles of metal puzzle rings, made of high-quality metal that will not bend or break even if thrown or stepped on. The coil is smooth and has no sharp edges, ensuring safety. Open your mind! Open it the right way and improve your IQ and EQ.
• 【IQ Challenge Puzzle Games】This small unlock interlock game can train your imagination, eye-hand coordination and shape recognition abilities. It helps develop the brain and dexterous fingers, and is great for testing logic and cultivating creativity. Helps improve concentration while staying entertained.
• 【Perfect Gift】These brain teaser puzzle toys not only exercise your brain, they are also a beautiful addition to your desk or table and can be used as table decorations in your study, living room, workbench, office or waiting room. Set of 25 pieces, packed in box. Perfect as birthday gifts, Children's Day gifts, Christmas gifts, party favors, etc.
• 【Easy to Carry】These mind game toys are small and ultra-light, and can be easily put into your pocket to kill time when you are bored. The included instructions have steps to untie it. Note: contains small parts, children need to use it under adult supervision.