While this beautiful wooden brain teaser puzzle probably won't appeal as much as an 8 karat brilliant round cut diamond ring, it is sure to capture the heart of any serious puzzle enthusiast. The solution to this puzzle rests in a key piece around which all other pieces need to be assembled. Like any real diamond, this puzzle is hard to crack! Instead of precision cuts, precision assembly will yield the greatest sparkle. Composed of twelve wood crafted non-identical pieces. Dimensions: 2 3/4" x 3 1/2"
Precision assemble twelve non-identical pieces into a cylindrical shape.