3M-Scotch Smart Mailer. These super strong, moisture resistant bubble mailers are perfect for delicate or important papers, documents, photographs, books and much more. Each envelope features pre-printed address and return address labels and is stamped with Handle with Care. This package contains one #7 19-1/2x15-5/8in mailers with inside measurements of 19-1/2x14-1/2in. Made in USA.