These usp type vii cotton 12-ply sponges are ideal for wound dressings, wound packing and general wound care. our strictly controlled manufacturing process assures clean, debris-free packing with folded edges to prevent unraveling. sterile 2's are packed in a coated paper envelope to reduce fiber debris. this easy-open envelope is also carefully sealed to prevent the intrusion of dust and contaminants. sterile 10's feature strong rigid trays. latex free. non-sterile. 3" x 3". quantity: 4000 each / 20 bags.