It is necessary to use brace your corner and end posts any time you opt to install Nylon Tension Cable. This kit contains everything you need to brace 4 corners. Recommended for larger enclosures that are installed with Nylon Tension Cable, our Ultra Heavy Duty Corner Post Brace Kits add extra stability and support to the corners of your fence enclosure. Each kit comes with two (8) side support braces and the necessary hardware.