Craighill Venn Puzzle

A kickstarter favorite. The Craighill Venn Puzzle in Stainless Steel is a beautiful mechanical puzzle comprised of three identical pieces. Each piece is die-cast in stainless steel that makes up one-third of the sphere by volume. Challenging and intriguing puzzle for a beautiful desk accessory. Keep it on a desk, shelf, or coffee table as a decoration, game, or paper weight.