Waterpik Water Flosser Cordless Plus WP-450ME WhiteExperience superior oral hygiene on the go with this cordless water flosser that removes up to 99. 9% of plaque from treated areas and is up to 50% more effective than traditional string floss for improving gum health. The portable, rechargeable design delivers clinical results anywhere while being gentle on gums and perfect for travel or daily use at home.