Moving from one challenge card to the next, it's up to you to fold this connected collection of sixteen colorful gears into the perfect positions that match each image. Two ways to play - colors or black and white - launch you into a higher gear of thinking. Folding, clicking puzzle of arranging gears to match challenge cards, one side features colors Fold and arrange gears to match images printed on 40 challenge cards Great for ages 6+, exceptionally strong, safe, high-quality materials, bpa free Strengthens visual-spatial skills, critical thinking, logic, detailed instructions Includes coggy, 40 challenge cards, chain of gears measures 14 inches long