Item M-1 is a padded poly mailer that measures 7.75" x 10.75" in height. This item is manufactured with a white poly that has fill pack bubbles lined throughout the interior. Each of the shipping bubble envelopes will have their very own self adhesive lining on the top, allowing you to secure your package for shipping. If you are looking to add your brand to our bubble mailers, please contact us and we can add a single color logo to this item.