• Marble maze to assemble with different elements to determine the path of the marble. • Includes two sound and light modules that are activated as the ball passes through. • 60 cm high elevator with two playing speeds. • The set contains 70 pieces, 2 light and sound modules, 10 marbles, and a color instruction sheet. • Please note that the parts in this set are not compatible with models Formula Ref BU220 and Formula Maxi Balls Ref PM851.