Ravensburger GraviTrax Element Colour Swap 22437 - Extension for Your Marble Run - Marble Run and Construction Toy from 8 Years, Grey

The Element Colour Swap provides great optical illusions in your marble run by replacing the balls GraviTrax is the flexibly expandable and interactive marble run for children aged 8 and over. This product must be combined with a starter kit and expands existing tracks With GraviTrax, entire marble run worlds can be created. Action bricks bring more action to existing tracks through impressive ball stunts The included instructions and building plans make it easier to get started, then there are no limits to creativity - long-lasting fun with lots of action Meaningful activity for children aged 8 and up, great gift for boys and girls aged 8 and up, Christmas gift, birthday gift or Easter gift, Manufacturer: Ravensburger