Fu Global 8.5x12 Inches Kraft Bubble Mailers Padded Envelopes #2 Pack of 25 KRAFT BUBBLE MAILER SIZE: Outside size: 8.5x12 inch, Useful Size: 8.5x11 inch. Pack of 25pcs LIGHT WEIGHT MAILER: This padded envelopes is very light, it can provide outstanding low cost shipping protection for a wide variety of products. DURABLE: The surface of this bubble envelopes made from a durable, recycled kraft paper. The interior built with bubble lined wall construction for extra protection during transit, ensure the packages arrive in great condition. TIGHT SEAL: The self-seal closure provides a reliable, tamper-evident tight seal to secure all enclosures. Extra smooth surface is perfect for handwriting, labeling and stamping. Warranty: If the bubble wrap envelopes do not meet your need, our customer service are free-hassle for you to resolve your issue.