Vertigo is part of the Quadrilla Range of marble runs by Hape. Children and parents alike will enjoy building the marble run, racing marbles down it then knocking it down. As well as being loads of fun it also will contrubute to your childs hand eye coordination, fine motor and gross motor skills and following a plan to build a marble run or creating your own. Hape Vertigo comes complete with 134 pieces consisting of 50 marbles, 3 spirals, 1 marble bag and 80 other parts to construct your marble run. Also included is a illustrated manual featuring hints and tips and 7 different Quadrilla vertigo designs to construct.