We have the Roomba 650, one of the most versatile Roomba robots ever made. Most non-original parts work without problems. The roller brushes and rubber rollers in this kit are wobbly and will not rotate properly. The square fitting that fits into the drive side of the rollers is made out of two pieces of plastic with one side larger than the other. You have to stuff it in for it to fit. Not a very good situation. There was a hole in one of the filters. Yes, I know it's cheap kit, but it reminds me that you get what you pay for. Despite the low price, I cannot recommend this set.
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