White #10 Security Window Envelopes, 100 Pack

These white #10 security window envelopes are designed for professional mailings where a printed address needs to remain visible. The 4 1/8 x 9 1/2 in. size fits standard folded letters, invoices, statements and administrative communications. Side-seam construction, 24 lb paper and a 100-count pack make them convenient for daily use in offices, schools, organizations and accounting departments. FSC® certified and made in Canada, they support Canadian purchasing needs for practical, clean and reliable window envelopes.