Great for kids to develop both brain and intelligence! Our 7 Sets IQ Test Toys Mind Game Brain Teaser Metal Wire Puzzles， with fine workmanship on the basis of superior stainless steel， ensures both quality and reliability. It is helpful in intellectual develop for both kids and adults. All these puzzles are of various difficulty level. Pick out the most suitable one for your kid or yourself. It will surely bring you a lot fun! Come and take it a try!                                    Features             This is a very helpful for the development of intellectual toys for children and adults<br> New and high quality<br> Come with 7 sets different puzzle rings with different level of difficulty<br> Metal brain teaser condenses with traditional Chinese culture and they are quite interesting<br> Good for creative thinking and improve both your IQ & EQ   <br>                                                            Specifications             Color     Silver    <br> Material      Stainless Steel    <br> Quantity     7 Sets    <br> Dimensions     (11.33 x 5.31 x 0.78)" / (28.8 x 13.5 x 2)cm (L x W x H)    <br> Weight     5.02oz / 142.3g       <br>                                                             Package Includes            1 x 7 Sets IQ Brain Teaser Toy<br>