Fine wood brainteaser puzzle cube with 27 beads threaded in a chain, lateral thinking is needed to make it a cube. Looks simple but not easy to do! Challenge yourself and your friends. It improves one’s lateral thinking. Ideal family gift and special gift for him. A fun and must to have item for your coffee table. "Toys of Wood Oxford" or "TOWO" is known for its fine quality, design led, traditional, fun and educational wooden toys. Toys include wooden puzzles, sorting, stacking s, pull-along, Montessori learning, matching, building and construction toys, family games and wooden brain teaser puzzles etc. are exclusively on . Wooden toys made with pure love and care for our children and the environment. All of the products meet the criteria set by the EC Toy Safety Directive, ASTM F963 and CPSIA Standards, tested and certified by International Accredited Labs. We pride ourselves on providing best and safe wooden toys and first class customer services. We hope our products will bring lots of fun and enjoyment to your children and family.