The Quality Park #10 Redi-Strip Security Envelope is a professional-grade mailing envelope designed for business and personal correspondence. Each envelope features a convenient Redi-Strip peel-and-seal adhesive flap, eliminating the need for moistening, making it fast and clean to use at volume.

These #10 envelopes measure 4-1/2" x 9-1/2", the standard size for fitting folded letter-size documents, invoices, checks, and business correspondence. Made from 24 lb white wove paper, they offer a crisp, professional appearance. The interior features Blue Park Tint security lining that obscures contents from view, protecting sensitive documents during transit.

Each box contains 500 envelopes, making this an ideal value purchase for offices, businesses, or anyone with regular mailing needs. Compatible with standard desktop printers for address printing.