Small yet powerful, the switches turn and make it possible to aim at two terminals at once.
Marble runs promote spatial intelligence and an understanding of fundamental physical concepts like acceleration and gravity.
These marble runs are designed to stay put, so your kids can focus on the fun. It is the most stable marble run system on the market, the snug fit makes it almost impossible to knock down by accident.
WARNING: CHOKING HAZARD - Small parts. Not for children under 3 yrs. contains small marble
AGE: 4 to 104 years (though actual construction better suited to older children—6+)