These USP Type VII cotton 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 2s 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 10s feature strong rigid trays./Also available in non-sterile bulk packs.