[Periodontal Tips] The Tips for periodontal pockets and furcations, a soft rubber tip designed for gentle, low-pressure delivery of therapeutic rinses below the gumline. To alleviate the symptoms of gingivitis, periodontitis, periodontal pocket depth reduction. [High Compatiblity]Compatible with WaterPik most water flossers and other brand oral irrigators including: The Ultra Water Flosser, Kids Water Flosser, The Traveler, Cordless Freedom, Cordless Professional, Cordless Plus, Showerpik, Aquarius Professional, Complete Care, and all Designer Series Water Flossers. [Work with models]WP-100 WP-100W WP-108 WP-112 WP-250 WP-260 WP-300 WP-440 WP-450 WP-462 WP-660 WP-662 WP-462 WP-670 WP-672 WP-676 WP-811 WP-861W WP862W WP-900 WP-940 WP-950 WP-952 DS-600W VA-EB006, Compatible with Flycat RC165 FC168 FC188 FC158, Compatible with Waterpulse V300 V400 V600 V660. [Easy to Replace]Our innovative tip replacement takes the strain out from flossing. Easily replace these alternative heads to make your water flossing work well. [Set of 4pcs]4 pieces 2 colors tips for general use, good replacement for the original oneReplacement Periodontal/Pocket Tips Compatible with Waterpik Water Flossers and Other Brand Oral Irrigators (4-pack) SZRH A-C