After reading some reviews I decided to try these replacement rollers. The price was very attractive considering you get two sets for the money. After installing it on my iRobot, the vacuum cleaner became very noisy. I kept getting a full bulb on the vacuum cleaner, but there wasn't much in it. I returned them and bought the real ones, now they are much quieter and work like new again. Don't waste your time, just buy the real deal.
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