Title: Wears out fast!
Review: Within a couple of weeks these brush heads get more loose than the original head did in a year. After a few more weeks, the heads flop around so much its hard to see how they stay together. The packaging and such looks authentic but I can't believe it. They pinch your cheeks when they wobble even when you are very careful. I'm going to find a store where they cost more because in this case the deal is not a deal.
Is this product review negative?