Ravensburger GraviTrax POWER Element Switch and Trigger
By cleverly installing electronic GraviTrax POWER elements, you control the trajectory of the balls. With the Trigger, invisible connections can be made in combination with other POWER stones such as POWER-Switch, POWER-Starter or Lever (not included). These represent three colour channels: red, green or blue. For even more action, many times longer running times and more complex track construction.
GraviTrax is a flexibly expandable, interactive ball track system for children aged 8 and up: with GraviTrax, children, teenagers and adults don't just build simple ball tracks. They create unique worlds with marble tracks. By freely designing marble tracks and exploring the behaviour of rolling balls, understanding of science is sharpened and gravity can be experienced first-hand. The STEM mark on Ravensburger products signals a category of games that allows science to be experienced through play. Ideal STEM (science, technology, engineering, mathematics). With various extensions, children can enlarge the ball tracks and create new ones over and over again.