3M Tegaderm Hydrocolloid Dressings. Sterile wound dressings consist of a hypoallergenic, hydrocolloid adhesive with an outer clear adhesive cover film. The innter layer of hydrocolloid adhesive rapidly absorbs exudates. These features ensure an optimal moist wound environment, which minimizes the chance for damage to healthy periwound skin and provides extended wear for up to seven days. 4" x 4-3/4" oval, 5" x 6" overall. Box of 5