The TwinDolly is basically a hi hat / low bowl with wheels, in an effective design. Together with TwinTube it is comparative with the old school camrail. It has the same elements as a slider but it is definitly more versatile. It is a simple small dolly and track system for more heavy cameras like Arricam or a fully equipped Red or Alexa.
It is the name for the tracks to be used with a TwinDolly, the perfect way to make your travel. Their joints are famous and unrecognizable. You will only need a support every other connection, so a quick setup is guaranteed.
With the additional TwinSliderBase you can create a Slider or Overkeeper from any length of TwinTube, mountable on any camera tripod.