Ahyuan Handmade Powder Barrel Wooden Puzzles for Adults an Interlocking 3D Brain Teaser Puzzles for Adults Hidden Passage Works on a Classic Mechanical Puzzle Concept

100% Wood Precision assemble twelve non-identical pieces into a cylindrical shape Powder Keg: A Best Selling Wood Brain Twister Puzzle,manipulative puzzles for adults Every piece is completely unique, handworked from premium grade, fully wood This intelligence toy can not only exercise brain, also can easily be used as a decoration in a den, family room, living room, working table, office or waiting room