Easy & Effective Water Flosser is the easy and most effective way to floss;Flush your teeth after meals and before sleeping keep good health for oral cavity Safe &Sanitary No Electricity, no noise, no risk of leakage 5 of different colors, brightly colored nozzle devices; one for each family member. Will not be mixed. Hygiene and conspicuous, Make every detail perfect for you. Thoughtful Configuration Free for two water heater shower connectors , If you are unable to be installed on the faucet, use the shower connector in the package to install it in the shower. Advanced Design Principle Using the water pressure of the faucet to remove oral residues is the most effective and gentle method; and optimizes the shortcomings of traditional dental floss without causing damage to the gums. Commitment and service Products follow the websites 30-day return policy . If you receive a defective product, Please let us know. All of our water flossers have 30 days money back & 90 days replacement .Please confirm whether the faucet is suitable before buying. We are on standby 24 hours.