Pack of 4 for the UPC: 381370092346 The power to heal.Dental FlossJ & JWind 18 inches around your fingers, leaving 4 inches of floss between them. Grasp floss between thumb and index finger. Clean up and down between teeth and under the gum line, using a clean section of floss every few teeth.Uses:Why should I floss? Dentists recommend flossing regularly because it is proven to remove plaque between teeth to help prevent gum disease.