Flexible twistable waveguide is divided into left-handed and right-handed according to the twisting direction. The standard twisting angle is 90 °. Other twisting angles can be customized. Dolph Microwave provide a wide variety of double ridged waveguide assemblies specially designed for every customers unique requirements. https://www.dolphmw.com/products/double-ridged-waveguide-twists/All Rights Reserved