Power up the fun with “GraviTrax POWER Elements Starter and Finish” and automatically send a new ball down the track as each one finishes!

Extend your marble run fun and launch a new ball down your track as one finishes — handsfree! Our “GraviTrax POWER Elements Starter and Finish” links the beginning and end of the track via radio (RF) signal. Load the Starter with up to 7 marbles. As a ball enters the Finish, it signals the Starter to launch a new one on its journey! How long can you race handsfree? An excellent addition to your existing GraviTrax system; completely compatible with GraviTrax products for tons of continuous fun!