May be used as a primary or secondary dressing. Helps maintain a moist wound surface. Promotes autolytic debridement in wounds with necrotic tissue. Film dressings are thin and water-resistant, and water, bacteria or other contaminants cannot penetrate the dressing. They are moisture vapor permeable which aids in moisture management. Tab delivery, sterile, single use and latex free. Measures 2-3/8 x 2-3/4" and is rectangular and transparent. Comes 100 per box.