Polyair Eco-lite #6 ELSS6 Golden Kraft Self Seal Bubble Mailer, 12-1/2" x 19" (Case of 50) Made from golden Kraft paper with a high slip lining Peal and Seal closure Tamper resistant/evident closure Low cost shipping protection for a wide variety of products Economical alternative to shipping products in a carton UPS, FedEx and USPS friendly Outstanding low cost shipping protection for a wide variety of products; Made from golden kraft paper with a high slip bubble lining. Peel and Seal closure and tamper resistant 3 side finned design provides added protection