They started fraying the first time I used them. I used them for about an hour and as you can see from the pictures they are fraying pretty bad. The fraying is right where the rope hits the ground. I was guessing it is probably because I am using them on carpet. If you are planning on using them on carpet you may have similar results. I sent an email to the company and they responded saying send them some pictures and they will tell me what to do. Those are the pictures I sent, and they never responded telling me what to do, so I decided what to do on my own. I took some black electrical tape and wrapped the fraying parts of each rope. I have continued to use them. I will just re-tape them if the tape comes loose. If I had it to do over I would probably spend a little more and get the ropes that have a protective coating on them. I would also probably go with the 2" inch instead of the 1 1/2" I think that may be a slightly more intense workout.
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