Great value
Since none of the Oral B replacement heads are now available except as soft bristles which do not stimulate my gums nor make me feel like my teeth are clean, I went shopping on-line for a medium bristle replacement head.  Not only did I find the medium bristle heads, but I found them at a superior price too!  They work just fine with my Oral B brush and I am very pleased with them.  Twelve heads for the same price as two or three at the retail stores!  What's to dislike?
Rating: 5 stars