This is the ridge fitting for the Jumbotrac and Jumbotrac Lite frame systems. It is used on all widths of Jumbotrac and Jumbotrac Lite tents when you add additional middles to any base hip or gable end. The fitting is welded from precision cut 1.25" Schedule 40 steel pipe and then powder coated with a grey gloss coating. The dimensions of the 1.25" SCH 40 pipe are 1.660" OD and 1.380" ID.