• Less friction. Slips easily between your teeth without tangling or breaking. • Stretch-resistant. Doesn't stretch during use, which prevents it from slipping off floss holders. • Contains a gentle whitening ingredient that removes stains in between teeth and unsightly brown outlines around teeth. • Refreshing mint flavour leaves your breath minty fresh. • Casing Design. The new contemporary casing design features a clear window that shows how much floss remains inside. • Extra stiff and strong floss that enables precise plaque removal efficiently without stretching or shredding. • Unbreakable. Significantly stronger than normal nylon and PTFE flosses which makes it unbreakable even in tight spaces or around the sharp edges of broken fillings, inlays, crowns and dental restorations. • Antibacterial. Helps kill bacteria in between teeth and gums. Store in cool and dry place China