Creative Gravity Play. More than a classic wooden ball run. The Wonderworld Tracks & Ball makes a great starter set and is a great addition to your exhisting Trix Tracks. Easy locking system keeps your creation stable while you build your maze. With your imagination there are endless configuration possibilities. Specially designed bricks are made from a combination of recycled saw dust and food grade plastic so it is durable. Combine with other Trix Track sets to create even larger tracks, more tricks and endless fun! 31 piece set including 1 colored wooden ball. •31 piece set •ENCOURAGES IMAGINATION & ORIGINALITY •PROMOTOES INTELLECT & SKILLS •PROMOTOES SPATIAL PERCEPTION, CREATIVITY AND CONCENTRATION •Made in Thailand from rubberwood and strictly using Non-Toxic Paints, Dyes and Lacquers and Formaldehyde Free Glue. Packaging is made from at least 70% recycled paper.