Venn Puzzle cpl Accordion-style opening

Accordion-style opening

Extra-long main compartment zipper and additional front and back pockets offer organization

With stowable backpack straps

A built-in steel D-Loop allows you to attach a cord or chain for extra security and handling

You can use it as a hand spinner

Venn Puzzle cpl Accordion-style openingA beautiful mechanical puzzle comprising three identical pieces, die cast in stainless steel and weighing almost 1 kg. The size is the same as a pool ball. The Venn Puzzle is a surprisingly difficult dexterity challenge and an intriguing addition to your desk, shelf, or coffee table. The assembled puzzle creates a perfect sphere so each piece makes up one third of the sphere by volume. While simple in concept, reassembling these three surprisingly