Ergonomically designed handle and 360 degree rotating nozzle let you easily control water flow to reach all areas of the mouth Equipped with a large high volume capacity tank for more convenience and less time spent filling the unit. Soft Water Flosser for Sensitive Teeth- 3 Modes ( soft, normal and pulse) Removes bacteria deep between teeth and below teeth and below the gum where brushing and flossing can't reach. Massages and stimulates gums to improve circulation and keep your gums strong and healthy. USB recharging water flosser cable included. 7.5 OZ water tank