Deer Fence Tension Cable Kits: Complete kits to add tension cable to your existing fence or a new fence. Includes retrofit post cable collars and standard deer fence post cable collars. Post cable collars attach to posts; tension cable is then supported through eyes on the collars. Includes connecting hardware and cable.
12ga black PVC coated braided steel cable is recommended for most applications. It's a nice flexible strong cable that's chew proof.
8ga black stretch monofilament cable is used when you're also using trees for support. Trees move and flex in wind; this cable can flex and move with trees.