The Pen+Gear Privacy Tint Window Envelopes are designed for secure and convenient shipping. With a size of 4×9 inches, these envelopes feature a seal and stick closure for easy sealing. The privacy tint on the window ensures that the recipient’s address is not visible to others, providing privacy during shipping. Perfect for businesses or individuals looking to protect their confidential information while sending mail or packages. Each unit contains 250 envelopes, making it a cost-effective solution for various shipping needs.