Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Cheap imitation don't bother

Got these, I read the review about fit, but that didn't stop me. Should have but didn't. They do fit on the brush. They do function, for a while. The brush heads wobble, which is not right, but I think when a metal part fell out, it just convinced me, pay the money get a braun as pricey as they are. But don't bother with these,.