Details: Powder Barrel: 2.95 x 2.95 x 2.95 in (7.5 x 7.5 x 7.5 cm). Please confirm this is the suitable size before order this brain teaser toy. The internal structure of these 3-D puzzles are engaged, very artful and delicate. It looks simple at your first sight, but when it take apart you will feel very puzzle to reassemble. Take patience and careful observation, it would be solved while you get the point of the solution. Not a simple toy, it can develop intelligence, improve problem-solving ability, Exercise the brain and finger, keep mind sharp, also perfect for passing the time. Relieve pressure and relax mood. It is also a favorite decoration crafts and table game for your living room, study, office or cafes and coffee shops.
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