Medi-Pak Performance Universal Sponges. 4" x 4", 4-Ply. Sterile. 100% cotton. Used for cleaning, prepping, scrubbing & wound dressing. More absorbent that woven gauze. Reduced linting and fraying than woven gauze. Compare to Mirasorb. Single use. Packaged: 2 Per Pack, 25 Packs Per Box, 60 Boxes Per Case. Mirasorb is a registered trademark of Johnson & Johnson Medical Inc. Arlington, TX.