129pc Hape Tricks & Twists Marble Track Kids Toy 3+ Get ready for some marble speed racing with this doityourself block set! It includes blocks, tracks, marbles, slides, marble trays, and everything you need to create the track. This exhilarating 129-piece race track for kids three years and up, with no fixed assembly required, allows for countless configurations to be created. It can be joined with any other Hape marble run set to make fantastic larger tracks!Send your marbles rolling down through a host of tricks, twists, and surprises down this fantastic playset, including a jump, a bellbucket, a spiral funnel, a ring bell, and a sliding track.The Tricks n Twists Marble Track provides a fun way of introducing children to physics principles such as potential energy, momentum, and gravity. Building the towers and tracks will improve children's hand-eye coordination, logical thinking skills, and problem-solving abilities. Age 3+Includes: 1 x Marble Track