A chain link fence stretcher is a tool used to install chain link fences to insure the fabric (fence material) is tight before attaching to the fence posts. It is important to prevent sagging in the fence to occur because this can create gaps and holes in the fence and takes away from the neat appearance a chain link fence offers. It would probably be more economical to rent a chain link fence
. stretcher from your local equipment rental store or home improvement center. If you have never used a stretcher before it would be a good idea to discuss the operation with the place you rent it from. You can visit this website to assist you in the installation process at http://www.lowes.ocm/lowes/lkn?action=howTo&p=LawnGarden/chainLinkFence.html.