This Review Title is Compatible well, soft as expected and the content is: These toothbrush heads fit the Sonicare Essence series 1 well. The shape of toothbrush head looks the same as the Philips one that I am currently using. It is soft for cleaning teeth. I got 6 of them in one pack that cost less money than other..There are other information for this review, one is This reviewer did purchase it and the other is 3 people think this review is helpful.