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A great product and a big hit with my kids. They have spent hours building tracks and coming up with new ideas. There are several expansions that introduce new concepts and broaden the building possibilities. You will want more beyond the Starter Set.
Our nearly 8 year old loves all things marbles so to build his own with these easy modules is perfect for this little engineer. Hours of fun over rainy Christmas holidays. He is already planning on saving for the extension sets:) Well done Ravensburger!