The 115gsm heavyweight paper of these Q-Connect Manilla Envelopes is tear-resistant thanks to the basket weave structure, making the envelopes suitable for heavy documents such as catalogues. These envelopes feature an easy-seal self adhesive flap; just insert your letter, fold the flap over & press down to seal. There's no gum & no licking required. The smooth manilla paper means that you can write or print addresses with complete clarity. Manilla envelopes for secure sending of documents Quality 115gsm paper is tear-resistant Self-seal closure is perfect for high volume sending High quality paper Dimensions: 406x 305mm (16 x 12 inches) Pack of 250 envelopes