#10 double-window security-tint gummed envelopes feature generously sized recipient and sender windows, making addresses easy to scan and read. Send bills, invoices and payments securely through the mail with these #10 double-window envelopes. Security tinting on the inside keeps personal information shielded from view, and the gummed closures ensure contents stay safely inside of each envelope. Constructed from white woven paper, these #10 double-window envelopes stand up to the rigors of the mailing process. • US #10 business envelopes are suitable for many mailing projects. • Made from white 24 lb. paper for durability. • These envelopes measure 4 1/8"H x 9 1/2"L in size, providing enough space for your mail. • Gummed closure with commercial flap keeps contents in place. • Security-tinted pattern helps to discourage reading sensitive information through the outside of the envelope. • 500 envelopes per box. • Envelopes contain 0% recycled content. • Double-window envelopes conveniently display addresses. • The flap is on the long side for easier filling. • Top Window: 1-3/16" x 3-1/2" Position: 3/8" from left and 2" from bottom. • Bottom Window: 1" x 4" Position: 3/8" from left and 1/2" from bottom. • 1000/Carton. Send confidential documents with confidence using these security-tint envelopes. The double-window envelopes offer openings for both the receiver and sender's information to simplify your office mailings. Know that your documents are secure and private with durable and quality envelopes. Secure Seal Ensure that your documents, letters, and personal and business correspondence are secure when using gummed envelopes. The commercial flap and gummed seal secure tightly, and the durability of the 24-pound construction helps protect the contents during mailing and storage Convenient Processing Use your own software to utilize the double-window envelopes to simplify mailings. The 4 1/8" x 9 1/2" double-window envelope provides an ... Sold as 1000/Carton. US #10 business envelopes are suitable for many mailing projects. Security-tinted pattern helps to discourage reading sensitive information through the outside of the envelope. The flap is on the long side for easier filling. Made from white 24 lb. paper for durability. 500 envelopes per box. Top Window: 1-3/16" x 3-1/2" Position: 3/8" from left and 2" from bottom. These envelopes measure 4 1/8"H x 9 1/2"L in size, providing enough space for your mail. Envelopes contain 0% recycled content. Bottom Window: 1" x 4" Position: 3/8" from left and 1/2" from bottom. Gummed closure with commercial flap keeps contents in place. Double-window envelopes conveniently display addresses. 1000/Carton.