American John R. Lynn originally created and patented the Bike cast puzzle in 1898. Using a gimmick/principle similar to those used in the ABC Cast Puzzle, this one has the same kind of labyrinth-like flow. When Nob Yoshigahara, perhaps the world's top puzzle creator, undertook the project of recreating this puzzle for Hanayama he did not have the original cast Bike to reference. After a considerable amount of time, Nob was able to create a puzzle with which he was satisfied. In 1994, the world once again had the treat of solving Bike. The key word is "paths". Hanayama is known worldwide for challenging puzzles and quality manufacturing. Can you take the pieces apart, then put them back together again? Hanayama cast metal brain teasers have 6 levels of difficulty, and each puzzle is Mensa-rated. Level 1 puzzles are considered easy by most puzzlers. Recommended for 1 player, ages 12 and up. Made in China. Package dimensions: 4.750 x 3.000 x 1.750 inches. 2 pieces. Includes 1 Puzzle. Wipe clean with dry or damp cloth. Imported Material & Care Plastic Spot clean only