Compete in a marble race on a track your child built themselves with the 90 Piece Quadrilla Stack Track Bucket Set from Hape. Your child will enjoy building this marble race track in endless combinations to send marbles down through twists, turns, holes, and ramps. This 90 piece Quadrilla bucket set comes with a wide variety of building components to jumpstart your child’s imagination. With 22 colorful building blocks, 3 gaskets, 5 hole shutters, 9 accelerators, 1 big twist, 2 3-hole strips, 5 small curved tracks, 1 blue see-saw, 1 rotatable tower, and 25 marbles, you’ll be able to keep your kids building for hours. The storage bucket and lid can even be built into the track to fully utilize all parts of this set. All the building pieces have passed multiple durability tests, including tests for bite force, shape point, and small parts to keep your child safe. Develop your child’s spatial thinking and understanding of STEAM principles with the 90 Piece Quadrilla Stack Track Bucket Set from Hape.