12 PLY * 4 x 4 200 Bag * Our absorbent gauze sponges are made from the highest quality materials and are designed to meet or exceed U.S.P. specifications for purity and absorbency * Sterile all-gauze sponges feature an easy to open peel back envelope for an aseptic presentation * All non-sterile gauze sponges are made of U.S.P. Type VII gauze with the cut edges folded in *