GraviTrax  Starter Set Glue squeeze your fingers against the

squeeze your fingers against the ball then bounce

With traditional jigsaws

an embrace will surely turn your frown upside down

once you flip open the box

GraviTrax  Starter Set Glue squeeze your fingers against theWith the GraviTrax Starter Set, there are no limits to creativity. Numerous components allow for a varied marble run experience. With the GraviTrax Starter Set, the spirit of invention is unleashed and everyone can dive straight into the huge, endlessly expandable marble run universe. With over 120 parts and a variety of building stones, nothing stands in the way of surprising and action packed building fun. The example tracks and instructions provide