I received this cleansing brush with my Olay exfoliating cleanser. This brush requires one double A battery. It is lightweight and the bristles are made out of silicone so it isn't harsh on my face. After use my face feels soft and clean. I find I am washing my face longer as I enjoy the soft pulsing bristles on my skin and have the added bonus of a massage. I can also use this cleansing brush in the shower as well.