Includes 8 different style metal wire puzzles,made by high quality mental and you can keep the shape from bending and breaking. The IQ toy doesn't have sharp edges to keep you and your children safe. Ring Puzzle Specially designed to test your brain,helps with practicing concentration and focus. Open your mind Try hard to separate the two pieces to amaze your friends and you will probably enjoy this. Metal puzzle brain teaser condenses with traditional Chinese culture and they are quite interesting to creative thinking and improve both your IQ and EQ. Metal Wire Puzzle set suitable for kids and adults,especially those who like to be challenged, but not for the children under six.Contains small parts, do not put into the mouth.