The Ultimate is the largest Quadrilla set. Two spiraling funnels, 12 curved rails, and 10 power-boosting accelerators inspire builders to design the ultimate marble run. STEM

• AWARD WINNING GAME: The quadrilla series games by Hape are award winning - recognized by the International toy industry with awards such as the “Spiel gut” (good toy) Award and Oppenheim toy Portfolio Platinum award winner this game is sure to entertain
• SUPPORTS .S.T.E.M. LEARNING: Watch your child develop their imagination, problem solving skills, counting, color identification. Each of the Seven Different Color Blocks has a different Function - Fun practice for logical and engineering thinking
• CHILDREN FOR THE FUTURE: Quadrille marble runs help children to develop spatial and reasoning abilities, and has even been highlighted as a developmental tool for computer programming by the wall street journal!
• MASSIVE 147 PIECE SET: As all quadrilla's this one is interchangeable and can be combined with other sets. Quadrille components are fully interchangeable and Use Standard 5/8" or 16mm marbles. The CHALLENGER is the BIGGEST of the whole quadrilla Family.
• QUALITY & ENVIRONMENTAL FRIENDLY: Made from a renewable resource. you want the very best for your child and Hape delivers! Our toys provide hours of endless entertainment while using non-toxic, renewable materials that can also be recycled! The toy is and safe for your child!