OpSite Transparent Film is film designed to help wounds heal. As a primary dressing, it is breathable, flexible & waterproof. This film allows for excess moisture vapor to escape while still keeping moisture in the wound environment to promote healing. Designed to conform to awkward areas such as elbows for a perfect fit. This film may be used as a secondary dressing to add wound protection & infection prevention. Acrylic adhesive that allows the dressing to stay in place for up to 7 days.