Right window address display for invoices and statements, displaying recipient addresses through the right side single window format without labels. Press-to-seal latex closure creates secure bond with firm pressure for faster sealing during high-volume mailing. Made from 24lb white paper with security tint to reduce read-through and protect financial documents in transit. Measures 4 1/8 x 9 1/2 inches to align with standard letter size invoice formats for consistent folding and accurate window positioning. 500-count pack supports recurring billing cycles for efficient mailing operations. Weight: 6.14 pounds.