Amazon.com: HOME-X Metal Wire Brain Teaser for Adults and Kids, Disentanglement Puzzle, Big Lantern, Advanced IQ Metal Puzzle, Magic Trick-4.5”D : Toys & Games
Mini Ball Assembly Puzzle by Fridolin Wooden Red Mini Ball 1.75" tall | eBay
IQ-Test, "Barrel", blue, 3D Puzzle, made of wood - Fridolin