Made of 100% woven cotton. Type VII sponges are strong, absorbent and durable. Used for a number of applications including general wound care, dressings, prepping, wound packing, and debriding- Gauze Sponge, Type VII, Sterile, 4" x 4", 8-Ply, 2/pk, 50 pk/bx, 12 bx/cs