Blue Summit Supplies 500#10 Left Window Security Envelopes, Gummed

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• Business Envelopes with Single Left Window Layout – Offices and businesses mailing invoices, payroll notices, and QuickBooks checks use these #10 left window envelopes designed to display the recipient address clearly through the window, eliminating the need for labels and streamlining mailing workflows.
• Commercial #10 Envelope Fit – Office staff and administrative teams use these #10 window envelopes measuring 4 1/8 x 9 1/2 inches, which fit tri-fold letters, invoices, and statements to support consistent document insertion and daily business mailing tasks.
• Tinted Business Envelopes with Windows and Privacy Security Tint – Businesses mailing sensitive documents use these windowed envelopes with a printed security tint that helps reduce read-through, protecting payroll information, patient statements, billing details, and confidential correspondence during transit.
• Permanent Moisten-To-Seal Gummed Flap – Offices and mailrooms handling bulk mailings use these 24lb white wove, size no. #10 security envelopes with a pointed gummed flap that seals with moisture, providing a reliable, traditional closure for invoices, checks, and recurring statement mailings.
• 500-Count Office Box – Small businesses, offices, and organizations use this 500-count pack of left window #10 envelopes to maintain a dependable supply for accounts payable, invoicing, church mailings, and monthly statement cycles.