The Mead Security Envelopes #6-3/4 are designed for secure packaging and shipping. Made by Mead, a trusted brand in the industry, these envelopes are specifically sized at 6-3/4 inches to provide a perfect fit for various items. The security features of these envelopes ensure that your packages are protected from tampering or theft, making them ideal for businesses and individuals looking to safeguard their shipments. Perfect for handling sensitive documents or valuable items, these envelopes offer peace of mind for your mailing needs.