While I was out shopping in a local store, I spotted this Spinbrush with medium bristles. At the time, I did not realize that it was a medium bristle until I went home and opened the package. However, since I was coming from soft or very soft bristles, I decided to brush my teeth more gently and let this toothbrush do all of the work. It does have a rather large toothbrush head, yet this is good because it cleans all areas of all of my teeth, even those hard to reach places in the back!