This is our deluxe line of non-woven sponges that are a unique rayon and polyester blend to provide improved strength and absorbency. The increased material weight helps to provide a more efficient sponge than our traditional Avant line by reducing the number of sponges that have to used for each procedure. These non-woven sponges provide increased wicking ability as well as less lint versus the traditional woven sponges. (Compare to J&J Nu-Gauze.), Non-Sterile 4" x 4" 4-ply.