Purchased a couple of these after the first belt stretched (after 10 years domestic use) forcing brush drive to not function. One to replaced stretched belt and a spare. Amazed again at how this cleaner drives itself and is so thorough at removing pet hair from carpets and other furniture items. LOL, I should have replaced this belt ages ago but the brush drive still worked, even though it didn't quite do the job it originally did. Now it cleans as good as new again!