ITEM NAME:Cage Lock Puzzle Classic Metal Mind Games Brain Teaser IQ Test Toys Level 1 Description: Kids Adults IQ Mind Game Training Metal Wire Ring IQ Test Magic Puzzles Toy Come with 8 sets different puzzle rings with different level of difficulty Good gift for yur children Good for creative thinking and improve both your IQ and EQ Material: Metal Package Includes: 1 Set Metal Puzzle Toy Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item Due to manual measurement, there may be 1-2mm error in size.Good for creative thinking and improve both your IQ and EQ.