Come and Check Our Promo Solutions.The outer layer of White Poly Bubble Mailer is covered with pearl film, which can effectively waterproof. The biggest feature of pearl film is that it has a certain degree of flexibility and is not easily damaged by external forces. There are enough air bubbles in the inner layer to better protect your items. Usually used for express bags, jewelry bags and clothing, etc. Support all sizes and logo customization. 13" W x 11" H Pls check inventory and detailed info with us before placing your orders.