For those who think that marble runs are only for children, this will prove otherwise. The Star Coaster is a brilliant, spectacular marble roller coaster featuring outrageous descents over breathtaking steep tracks, through loops, and rapid curves. It presents a serious challenge for young and adult tinkering fans, whose hearts will surely race. Available in various levels with different sizes and difficulty levels, the sophisticated system consists of a base plate on which metal elements, flexible plastic tubes, switches, seesaws, and rotating arms create a demanding marble run, where the included metal marbles race down at breathtaking speed. The challenge, size, and complexity of the marble runs increase with each level. The absolute highlight: after a thrilling descent, the marble lands in a battery-operated elevator that brings the marbles back up to their starting positions - and the next descent can begin. Even the assembly is both a challenge and immense fun: it can take anywhere from several hours to several days, depending on the level.