Loop

The Loop is an Expansion component for a Gravitrax marble run. It does exactly what it sounds like and sends the marble in a loop.

Function
The Loop is similar to the Junction component, but it has a green loop in the middle of its two openings. With sufficient speed, a marble that passes through either opening will loop around and come out the other side. However, the incoming marble must be very fast for the loop to function properly; otherwise, it may fall off the track or be sent backwards. The marble also loses a lot of its speed upon passing through the loop.

Obtaining
The Loop can be found in the Starter Set XXL and the Looping Expansion. Only 1 loop comes in each. In both sets, this component comes unassembled, being built out of three separate parts which snap into place.