Puzzle-solving is at the heart of every innovation. Faced with a challenge, great thinkers for centuries employed logic, ingenuity, and creative thinking to solve the toughest problems. What resulted were brilliant inventions that changed the world. We’ve honored the original thought-leaders from ancient cultures by connecting their inventions to our brainteasers to create a challenging line of puzzles worthy of the title, True Genius. Goal: Remove the ball from the bottle.The origins of glass-making are shrouded in mystery. In many cultures, it was a highly-coveted secret passed down from master to apprentice and sharing the technique was punishable by death! One of the earliest forms of glass making, core forming, is traced back to ancient Greece. This process shaped liquid glass around a solid object to create a hollow center. Once it was cool, the core was removed to unveil flasks which were used to store perfumed oil. Our ancient flask puzzle challenges you to remove the stick and unveil the secret of Greece’s true genius.For Ages: 14+WARNING! Choking hazard. May contain small parts. Not for children under 3 years. May contain splinters