General description Arofol Classic Gold Bubble Lined Envelopes Bags are designed for general use and mailing items through the postal system. These envelopes feature an easy peel-and-seal closure, ensuring a secure and mess-free experience. Technical specifications Size: 300 x 445 mm Type: Size 9 Material: Environmentally-friendly FSC paper Inner lining: Bubble lined for added protection Outer material: Glazed paper for tear resistance Other information All FSC-certified products are sourced from responsibly managed forests. Available in a full range of sizes (size 1 to 10) for various needs.