I was going to make some rope tensioners when I thought maybe Amazon has something cheap that I wouldn't have to waste good poly-carbonate and get a heat stroke in the garage. Then I found these. 7$ and came same day. I was a little disappointed when they came in. They came in a large jiffy pack and the contents were smaller than the palm of my hand. The first cord was a struggle as it was the larger normal size, but worked well. The rest of the cords were the smaller 25ft ones I bought at Dollar Tree and they fit perfect. Took about 10 minutes to string up all 6 cords on my 29ft end feed vertical, but took only a few seconds to get the vertical straight. Very good buy.