3D Puzzle - Double cross - Wooden IQ-puzzle - Cuboss.com
Bambuspuzzle "Block Kreuz 2" | Fridolin 17156
Brain Teaser Puzzle 20Pcs Unlock Interlock Game IQ Test Wooden Toy 3D Magic Ball | eBay
Brain Teasers Metal and Wooden Puzzles for Kids and Adults Mind, IQ and Logic Test and Handheld Disentanglement Games Wooden Educational Toys - Walmart.com