Compatible with any quip Electric Toothbrush Starter Kit and best with quip Mint Toothpaste, Floss String, Floss Pick, & MouthwashReplace every 3 months for better oral hygiene, like dentists recommendADA-Accepted. Helps remove plaque, prevent & reduce gingivitisSoft nylon bristles, safe on sensitive teeth & gums, compact & flexible to help clean tight spacesReusable product - replaceable brush head to reduce waste100% recyclable paper packagingTongue scraper on back to help freshen breathFirst refill free with subscription at getquip.com