The CenFlex Horse Fence Line Post Bracket for CenFlex 5 in. Flexible Rail Bracket is a CenFlex fence rail accessory. These fence post brackets are needed to secure each rail to wood line and corner posts. CenFlex line post brackets have a belt-loop design that allows the CenFlex rail to slip through it for easy tension adjustment and to promote rail flexibility. These metal fence post brackets are also steel bar reinforced for strength. If the fence rail is hit, this design allows the entire fence line to freely absorb the impact, thus reducing an injury to the animal and/or fence. These fence post repair brackets should be installed on a 4 in. to 6 in. wood line post.