Get your brain cranking with the Crankity Brain Teaser Game. The object is simple - build a puzzle solution between the red gear and the yellow wheel. When the gear teeth interlock, you'll be able to turn the wheel and send the whole contraption spinning! Start by choosing a puzzle of your choice. Slide the card under the clear grid, then place the red gear and yellow wheel as indicated. Each puzzle will show you an array of colours and sizes of gears, and printed along the bottom of the card, youll see how many of each you'll need. Now solve that puzzle. Think youve solved the puzzle? Give the yellow wheel a turn and see if your contraption spins! If the red gear spins along with all of the gears, you have just engineered a solution to the puzzle. If not, return to your design board and give your problem-solving skills another whirl. There are 4 levels of difficulty so the whole family can play. Product features: Includes: 15x gears, 40x puzzles, 1x tray, 1x storage bag It's