Great deal and quiet rolling. These were priced great and were a great replacement for the squeaking metal wheels on my rolling door. After a few minutes to drop these into place and a few drops of oil, my door moves so smoothly and quietly that I can' really hear it moving from inside the house. That is a BIG change as I could clearly tell and was often awakened by it before the change. These fit like a dream and work well. I never thought of changing the wheels till I saw a Groupon ad for a door tune-up for $125 which was basically replacing the wheels. I checked amazon.com and ordered these. 10 minutes after arrival, and for about $10 I had the same result.