Kraft Bubble Mailers Exterior Size: 9.5 x 14.5" Usable Size: 9.5 x 13.5" Durable mailer for multiple applications. These Kraft bubble mailers are just the right size for many of your shipping needs. Each mailer is made from the highest quality recycled Kraft paper, high-strength seam and thick bubble lining which provides extra protection for your items. Seamless bottom for maximum strength Smooth side seams Self-sealing, pressure-sensitive strip closure 100% Recycled golden Kraft Paper Cover Approved for use with all major shipping carriers. Lightweight for postage Savings Model: BM-4