The product is a pack of 100 premium 28lb Kraft booklet envelopes, each measuring 9″ x 12″. These envelopes are designed to hold booklets or documents securely during shipping or mailing. Made in the United States, the Kraft color gives them a professional and environmentally friendly look. Each envelope is of high quality and durable, making them suitable for office use or business mailing needs. The pack of 100 ensures you have an ample supply on hand for your mailing requirements.