Oral-B Water Flosser Advanced. Includes handle, charger, and two nozzles. 3/Case. Oral-B’s exclusive Oxyjet™ Technology uses water enriched withmicrobubbles of air to help improve gum health. Use the customizable stream settings on the nozzles for a more personalized experience. The only water flosser with unique “On-Demand” button for easier, less messy usage experience.Customize your clean with different water pressures: Intense, Medium, and Sensitive. Perfect for Implants, crowns, braces, gum sensitivity, or anyone needing support with their at-home interdental cleaning.