Gently massages and scrubs the scalp. Removes dead skin cells while giving a feeling of freshness and rejuvenation. The brush fits precisely in the palm of your hand and works perfectly even when hair is wet. There is no need for batteries. Contains delicate silicone fibers that allow for an effective massage for all hair types. Comes with an open seal where shampoo can be inserted to simultaneously rinse and massage the scalp. The brush is water-resistant and gentle on the skin.