Expanding Dental Floss with Refillable DispenserMint 30m Davids floss refill system is designed to reduce waste & save energy by eliminating single use disposable dispensers. The reusable plastic dispenser opens easily for installing floss refills (sold separately). expanding floss design, creates increased surface area to more effectively grab plaque and debris for a deeper clean infused with vegan wax & cocoa butter to gently and smoothly clean between teeth and gums premium natural mint