About the product 6 pcs 12inch (30.5cm) Heavy flow Charcoal Bamboo Menstrual Pads. Flow: Equivalent to a heavy flow or panty liner absorbency pad. Size: The size of each pad is comparable to a heavy flow disposable sanitary pad. Each pad measures 30.5cm X 7.5cm (12 inch X 3 inch) (excluding two wings). Composition: comprised of 4 layers, upper layer is l layer of soft and smooth bamboo against your skin, inner layer is 2 layer of microfiber which is super absorbent and the outer layer is 1 layer with a waterproof PUL backing to prevent leaks. Secure: The wings have 2 snap set allowing them to be clipped around underwear for extra security. Machine washable