The sensitive brush head is for daily cleansing. The exfoliating brush head is for deeper cleansing. Includes: 1 x sensitive brush head 1 x exfoliating brush head. Sonic Mini® brush heads simply click in and out out the main unit. *Although the Manicare Sonic Mini® is water resistant and can be used in the shower, it is recommended to keep the recharging port dry at all times.