The brush gets most of the work done, but takes little more effort than a full sized brush.
I would recommend this to a friend!
Response from waterpik.comBy Waterpik, Product Support, December 21, 2020
We are sorry to see that you are not completely satisfied with the brush heads. We do have larger Flossing Brush Heads available. You can view them at the following link: https://www.waterpik.com/oral-health/tips-accessories/SFFB-2EW/