Reproduce the layouts pictured on the box, or in the included instruction booklet or just have fun experimenting with new marble run designs. The interlocking chutes, bridges, pillars are transparent, so you can follow the marbles progress through the run, and spinning wheels can all be combined in countless configurations that guarantee hours of great fun. This marble run promotes creativity and logical reasoning both of which are required to place and fix the components precisely and get the marbles rolling. Comes with 10 x straight tracks in 2 transparent colours, 4 x transparent pillars/tubes/uprights, 4 x bases, 2 x swirls, 2 x starting gates, 1 x starting gate container and 10 x marbles. This toy is designed to encourage your child's manual dexterity, help to learn cause and effect, problem solving and help with their spatial reasoning skills. Suits ages 4 - 10 years.