This four arm fitting serves as the crown fitting for all square, hip end frame tent designs 15' wide and smaller (i.e. 10'x10', 12'x12'. 15'x15'). It is designed for use on traditional/west coast style frame tent systems that utilize 2.0" round aluminum tubing with a 0.125" wall thickness. 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.