The product is a pack of 30 Staples 9 x 12 Catalog Envelopes with QuickStrip closure. These envelopes are designed for easy and secure closure, making them ideal for shipping and mailing purposes. The size of 9 x 12 offers ample space for documents and materials, while the brand Staples ensures reliability and quality. Perfect for businesses and individuals looking to send out catalogs, newsletters, or other materials in a professional and organized manner.