An intriguing construction set comprising 9 chutes, 9 curves, 24 tubes, 6 bases, snake pass, rotary drop, paddle wheel, roundabout and 8 marbles. Children can create small, simple marble runs or more complex structures with the colourful slot-together plastic pieces. The marbles will disappear inside the columns, roll down the chutes, through the paddle wheel and around the roundabout. Building a variety of challenging and fascinating alternatives will provide many hours of fun.