Brain Teaser Puzzle 20Pcs Unlock Interlock Game IQ Test Wooden Toy 3D Unlock Interlock Puzzle Magic Ball Brain Teaser Toy Puzzles for Adults

Features: ?The puzzles look simple,but contain lots of mysteries. They are easy to disassemble but difficult to assemble. ?Train brains.It can make your brain sharper, develop intelligence, Challenge your mind and patience. ?Have parties.Take this set of brain teaser to share with your friends, families or colleagues. ?These puzzles can get children away from phones or other electric device. Package Include: 16 x Metal Puzzle 4 x Wooden 3D Puzzle Cautions: 1.Children must be used it under the adult's tutelage. 2.Do not drop them on the floor or the desk. 3.Do not play with them if there is any issue. 4.Do not keep the toy in the mouth to prevent children devour small parts in the toy.