What it does: Cuboro Metro adds 8 new functions, letting you tunnel and turn on the same level, providing more "internal" or hidden possibilities - marbles may disappear within the run for longer periods.

Why buy it: A great addition to anyone's Cuboro collection.

• Fun Fact: Cuboro is one of our favorites here at Oh! Toys.  Part marble run, part puzzle and part developmental and educational marvel, Cuboro is truly a "heritage toy" -- one which not only can be passed from one generation to the next, but which children will come back to time and again as they grow and become more sophisticated about their creations. 
• Age: 5+
• Pieces: 24 blocks (X functions), 3 marbles
• Warnings: CHOKING HAZARD - Toy contains a marble. Not for children under 3 yrs.