Size: Length: Approximately 12.5cm Width: Approximately 19cm (when laid flat) Cotton Lace Materials: Cotton Lace High-quality cotton knit Inner Mask The part of the mask that touches the skin on the inside has a smooth, natural feel for comfort. It's made thin, so it can be used inside a non-woven mask for virus protection. Because it's made of a cool and refreshing material, it's surprisingly comfortable to wear compared to just wearing a non-woven mask. It also helps save on non-woven masks! If you wish, I will include two mask strings. They are made of knit fabric and won't dig into your ears. Purchases made by 4 PM will be shipped the same day.