Business Source No. 9 Double Window Invoice Envelopes - Double Window - #9 - 8 7/8in Width x 3 7/8in Length - 24 lb - White - 500 / Box MPN:36680

These Business Source No. 9 double window invoice envelopes are perfect for any mailing project that requires the inclusion of checks or other contents that need to be visible from the outside. The double-window design allows for a window on the left and right sides, ensuring easy visibility and accessibility. Measuring 8 7/8 inches in width and 3 7/8 inches in length with a 24lb paper weight, these envelopes provide a sturdy option that can hold multiple sheets of documents or contents securely. The box contains 500 envelopes, making it suitable for bulk orders. Additionally, the white color is timeless and versatile, ensuring compatibility with any office setting or branding. Overall, these invoice envelopes are a great option for professional, organized mailing needs.