Build an exciting marble racing game for up to 4 players. Fully compatible with Galt Marble Run, this exciting construction set features 3 special racing pieces.A variety of chutes and wheels are also included for a really fascinating race. Starter top, starter base, finish, 3 racing vortex, wiggly bell chute, staircase, staircase support, curved chute with horizontal wheel, vertical wheel chute, paddle wheel, 'S' shaped chute, 4 straight chutes, 37 tubes, 4 bases and 20 marbles