Folding extended support for mounting on point or bridge. This replacement top clamp adds a support leg for anyone that mounts their unit on a elevated surface above the deck. So when the unit folds we still maintain solid support for the graph against the deck. Keeps the unneeded stress off your deck and mount. A simple cut to fit plastic rod just like your trolling motor carries the load. Max length of rod is 14". Please let us know if you need a longer custom length.