From the description here (which looks like it was cut and glued from elsewhere) it specifically states that these are non-marking nylon wheels with a urethane cover. I was about to order a kit but the picture got messed up because I didn't see a separate profile on the wheel. I googled their product number - TWHN-40N-T03-BK - and landed on their own website which said these were nylon wheels only. No urethane protection. It is very misleading to say one thing here and then send something else. I'm so glad I checked it out!
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