Black stainless steel self locking ties are the perfect way to attach your deer fencing to line posts. These heavy duty ties have a 100 lb breaking strength. These steel ties will not become brittle and break like standard plastic ties will do over time. The manufacturer recommends the use of the stainless cutter-puller tool to install stainless steel self-locking ties correctly. For attaching poly deer fencing to heavy duty line posts, corners, ends, and gates, we recommend our 14 inch stainless steel self-locking ties.