I bought these along with a Montbell Hexa Tarp. I bought them as spare guy lines, but I'm selling them because I don't need them. They've never been used. I only inspected them when I took them out of the bag. I think they can be used as guy lines for tarps other than the Hexa Tarp. How about it? The thickness is 3mm for all of them. 2m x 4 pieces 10m x 2 pieces Adjustable metal fittings are also included. Please check the images for details.