Covidien 9023 Curity 3 x 3 inch all purpose sponge Gauze, 4 ply offers an economical and versatile sponge for wound care and more. The polyester and rayon blend with 4-ply construction makes this Gauze Sponge 40 percent heavier than imported Gauze brands. The weight and ply adds greater patient comfort when placed against the wound as a dressing or used to clean the wound.