Get your mental gears spinning with this bending, clicking, shape-shifting brainteaser! I’s up to you to fold this connected collection of 16 gears into the perfect positions that match each challenge. Start out with the first card and it might seem easy. But keep on working through medium, hard, and extra hard – It’s not long before your synapses are in a jam and you’re forced to shift to a higher gear of thinking!

• Includes Coggy, 40 challenge cards; chain of gears measures 14 inches long