Muzata 1/8" Invisible Angle Adjustable Terminal Toggle Anchor CR07Product Advantage Only Work as Fixed End: The Muzata CR07 functions as a fixed end and is suitable for metal posts (with hole sizes ranging from 10mm to 20mm). It is recommended to pair it with the Muzata CB40 tensioner to form a complete cable railing hardware. Completely Invisible: With patent designs of a flattened tail and compact body, you can hide the entire fitting inside the metal post to get a neat look. One Post Corner & Wall Post Solution: