Adenna's Sterilization Pouches have a Triple Seal, Triple Heat Process which means the edges of the pouch are sealed by three separately heat-sealed rails, which is stronger than single sealed rail, to prevent separation or tearing by instruments. Medical grade paper also helps to make the pouches more durable because the paper is wet strength treated for high performance. Features such as a preforated fold, corner tack seals and thumb notch make these pouches all around easier to use when sterilizing product.