Quadrilla Stack Track Builder SetFollow the instructions to build the track or get imaginative and create your own! The bucket lid is reversible and can be used separately as its own little marble track. Marble run with storage bucket Includes 22 building block in different colors, three gaskets, five hole shutters, nine accelerators, one big twist, two three hole strips, five small curved tracks, one blue see saw, one rotatable tower and 25 marbles in a cotton bag Bucket and lid