The Aimoh #10 catalog envelopes are designed for business use, featuring a rectangular shape and a self-seal closure for security. Made of paper, these white envelopes are 100 counts in size and come with a security tint for added privacy. The 10 x 13 size makes them suitable for various mailing needs, while the Aimoh brand ensures quality and reliability. Ideal for sending confidential documents or sensitive information, these self-seal envelopes provide a convenient and secure option for business correspondence.