Review title is They seem very nice for the price [SEP] Unfortunately they don't remotely fit my Sonicare toothbrush.  It must not be Series E.  It doesn't say anywhere on my toothbrush what model it is so I took a chance.  I'm sorry that I really can't review them but they look great - just have a very complicated looking connection with a bulbous collar and 2 little "legs" inside it.  My 3 star rating  is just a guess.