McKesson 4-Ply Nonwoven Non-Sterile Gauze Sponges. These non-sterile first-aid bandages are made from 100-percent cotton and feature a nonwoven 4-ply design. Featuring a 4-ply nonwoven 100-percent-cotton design, McKesson Gauze Sponges excel at cleaning, prepping, scrubbing and wound dressing.