One of the world's greatest brainteaser puzzles</br>Make the letter t with four puzzle pieces?? that's all you have to do</br>Keeping your head from spinning will probably be harder</br>Three hint cards help you get to the "ha" sensation of solving a great brainteaser</br>Learning skills:  logic?? deductive reasoning?? abstract thinking?? spatial relationships</br><br/>http://www.amazon.com/gp/product/B000GHZ0W00