This 2 Kraft Bubble envelopes has an excellent tear and puncture resistant with a strong self-sealing adhesive and quality bubble provides extra protection during transit. These 8.5"x11" Kraft bubble envelopes are made from sustainable Kraft paper. Kraft bubbles envelopes are designed to help your post stand out. Bubble mailers lining provides added protection for contents. 8.5x11 Kraft bubble mailers are perfect for fragile items, brochures, catalogues, books, bulky material, gifts, presents, electronic media and both Amazon and eBay. ?Inner Dimensions: 8.5x11 inches Bubble Kraft Bag ?Outside Dimension: 8.5x12 inches Bubble Kraft Bag ?Color: Yellow Kraft Bag ?Seal Type: With Adhesive easy close strip ?Quantity: 50 Kraft Bubble Envelopes