Nonwoven Sponge McKesson Polyester / Rayon 4-Ply 3 X 3 Inch Square NonSterile These McKesson gauze sponges, 3 x 3 inches, consist of a blend of polyester and rayon They're highly absorbent to help wick away moisture and fluids This dressing helps prevent infections by maintaining a dry, clean environment These sponge wound dressings are strong and durable