An overview of air jet weaving and the tunnel reed addresses the importance of correct dent and reed selection. Key features of components include the total length and height, clear height, thickness and height of the bottom and top channels, and tunnel height. Key process parameters include loom type, dents per inch, total spaces required, profile dent thickness, sley x picks, required air flow pressure, and number of reeds. In the United States, Steel Heddle is the only reed manufacturer that manufactures its own profile and straight dents. The company sells the Ultra Duraweld, a high quality stainless steel profile dent that features precise tolerances, weights, thicknesses, widths, surface smoothness, and channel sizes.