About Marble Run 74 Piece:
Marble Run 74 Piece set. Build hundreds of runs for hours of fun with this Marble Run 74 Piece set. There are hundreds of combinations to make with the brightly coloured plastic pieces. The chutes and slides in this set build into a variety of impressive marble runs, with three shutter release top sections and five bases for each marble to finish in. The set also includes an inverted loop, spiral, spinning wheel and a number of other interesting connecting run sections.