The gift that inspires.
A great way to get your kids or grandchildren interested in the principles of physics, engineering, and math.
Like "The Crank", this spiral toy is hand-powered but twice the fun. Marbles go up the center elevator then race down both sides.
Dimensions: 3 1/2"D, 8 1/2" W, 16" H
The toy is made from Vermont Maple and comes with 32 self contained marbles .