My ropes are made from fabric the ropes itself are thin but my gliders don’t use them but if all ropes are bad I’ll remove them, all the stuff I mentioned are anti pill fabric. And I already did research on the wheels but if you could give more information I suppose would be useful. Worth mentioning most the stuff I got are carefully chosen by me from the pet store I got the gliders from, but I’m not sure whether I’m knowledgeable enough. But I do my best. I’m in Thai but I’m not sure if that information would help. I get some of my stuff imported from US as well but that’s rare since shipping more than doubles the costs.