Review on XiaZ Dog Tie Out Cable: 100ft Heavy-Duty Trolley Runner for Dogs up to 250lbs - Ideal for Yard, Camping, and Outdoor Adventures, Includes 8ft Bungee Runner and Tree-Friendly Cable Sling by Tammy Smith

Someone mentioned that such a long cord is difficult to pull and while it can be tricky I found it very easy just by wrapping the free end around the tree and pulling . This wouldn't be possible if I only had a few feet to spare, but my trees are probably 90 feet apart which made it easy. I just drew It began to be taught. I then used U clamps and a set of ratchets to tighten the clamps. Note that to attach the plastic connector you must remove the rubber grommet, but you must insert the connector and then thread the cable through the grommet. The sleeve protects the tree. If you don't remove it, the cork won't go through and end up in the right place.