Hape Quadrilla The Challenger 147 Pieces

With so many pieces that expand and create new learning opportunities this is the perfect set to challenge any keen learner. Adding different pieces can make your marble run faster or slower, but what will it do? See how many ways you can build! A great resource to begin understanding concepts such as velocity, speed, weight and gravity. Includes: 33 x Coloured Blocks, 20 x Height Adjusters, 10 x Base Rings, 5 x Marble Stops, 15 x Accelerators, 2 x Straight Rails, 1 x Seesaw, 2 x Twists, 8 x Curves Rails, 50 Marbles, 1 x Cotton Bag. Made of wood.