brain teaser puzzles Educational Wood Toys WY1283 Key Wooden Kong Ming Lock Game Brainteaser Wisdom Challenge Intellectual Training Creative Thinking IQ Magic WY1283 Key Wooden Kong Ming Lock Size(Aprox.): 15.5 x 6.4 x 1.8cm (6 3/32"x2 33/64"x45/64") Intelligence game ,great challenge for kids and adults Age 6+ There are hundreds of different puzzle toys on my store. If you like my store, please add to your favorite. Thank You.