This includes a 36" flexible tube, 12" flexible tube, and a support tube.  Also included is a compression fitting for the flexible tubes.  The kit is intended for running your RC antenna wire up and out of the way and boosting your RC range.  

A RC antenna wire is usually too flexible to push through the tube, so we use a small piece of solid wire to snake down the tube,  then we solder or pinch it onto the receiver wire and pull it through.