Review on Theresa Hay Replacement Replaces Pre Motor by Rebecca Bourassa

I have an old Shark robot vacuum that was given to me as a gift. It worked fine at first, but little by little it's slipping. I bought this to see if it would help extend the life of my robot vacuum. So far everything has been fine. The parts are very easy to install and there are a lot of them in the packages which is great. Overall it helped with my shark but the parts aren't as solid as I would have liked. Mainly three rounds.