Grip-Seal Double View Window Business Envelopes

500 / Box. These #9 (3-7/8" x 8-7/8") envelopes are designed to be compatible with most computer generated forms, invoices, purchase orders and more. Two poly-clear windows clearly show return and mailing addresses for contents, eliminating the need to address envelopes. Include convenient and secure self-sealing Grip-Seal closures. Simply peel off release strip and press down for a quick, secure seal. Envelopes are made with premium 24 lb. white wove stock and are security tinted for added privacy and confidentiality. Top window is 1-1/8" high x 3-1/2" wide, positioned 3/8" from left, 2" from bottom. Bottom window is 1-1/8 high x 4" wide, positioned 3/8" from left, 1/2" from bottom.