Silver Foam Dressing Optifoam Gentle AG+ Post-Op 4 X 6 Inch Rectangle SterileIonic silver manages repeated bacterial introduction and can eliminate 99. 99% of bacteria within 2 hours, remaining effective for up to 7 days Foam dressing acts as both a primary and secondary dressing For increased patient comfort, these strips use a thin and conformable border that is waterproof, flexible and breathable; the silicone adhesive is designed to be gentle Smart Stretch Technology provides a flexible dressing that moves with the patient