Medi-Pak Performance Universal Sponges. 4" x 4" (10.2 cm x 10.2 cm), 4-Ply. Non-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: 200 Per Pack, 20 Packs Per Case. Mirasorb is a registered trademark of Johnson & Johnson Medical Inc. Arlington, TX.