Challenge the PhD (or puzzle-loving brainiac) in your family with our tricky wooden or metal brainteasers! These clever puzzles make the perfect smart stocking stuffers, each offering a unique solution and a range of difficulty levels. Collect a few—they're not just fun challenges, but also stylish desk toys or fidgets for teens and adults. Available in 8 eye-catching styles (selection varies), each sold separately. Ages 14 & up.
