Duo-Derm Extra Thin 7.5cm X 7.5cm (5) , formerly Granuflex Extra Thin, Thin hydrocolloid dressing. Consists of an inner (wound contact) layer of hydrocolloid contained within an adhesive polymer matrix and an outer layer of polyurethane film. For use on post-surgical wounds, lightly exuding traumatic wounds and superficial pressure sores. Sterile and Waterproof, it is possible to bathe or shower with the dressing in position