Don't our children love watching ball runs? This combination is a classic learn through play as we teach our children all about science with the 92 piece ball run pack as the balls move drop via gravity. But wait a minute, how do we create that height? Of course, with the 100 piece pack.
Not only will you be able to use these 2 sets to make your dream ball run, you'd be able to come up with various other creations such as a race track, a rocket, an army tank, only limited by your own imagination.