Covidien Curity Non-Sterile Cover Sponges (3" x 3") (1700) are non-sterile non-woven sponges designed for moderate to heavy exuding wounds. Kendall Curity Cover Sponges have a unique outer layer of cellulose wadding filled material that promotes excellent absorbency. Kendall Curity Sterile Cover Sponges retain more liquid than the regular gauze sponges. 100/BG 40BG/CS (4000). Price per bag.