Size : #10 Right Side Window Envelopes / 4 1/8 in. x 9 1/2 in. / 4.125" x 9.5" / 105mm x 241mm Color - 24lb. Bright White Quantity: Pack of 50 Uses : These envelopes are perfect for businesses that regularly send out invoices, statements, or other important documents. They are also ideal for personal use, such as mailing greeting cards, invitations, or personal correspondence. The right window design makes them particularly well-suited for bulk mailings, as it simplifies the addressing process and ensures a uniform, professional look for all your outgoing mail. When using these envelopes, be sure to fold your documents neatly to ensure a proper fit. Additionally, double-check the recipient's address to ensure it aligns correctly with the window. For bulk mailings, consider using a mail merge feature to print addresses directly onto the documents, further streamlining the process. Finally, always use a quality adhesive to seal the envelopes securely, protecting your mailings during transit. #10 Right Side Window Envelopes (4 1/8 x 9 1/2) in 24lb. Bright White are pure white, standard weight envelope.Never spend time individually addressing letters, invoices or statements again - just position the address on a document to show through the envelope window and you're ready for action.These top quality envelopes are sealed by a moistenable strip located on the inside of the back flap. If you're looking for the perfect Envelopes, the #10 Right Side Window Envelopes (4 1/8 x 9 1/2) in 24lb. White are the perfect choice and an amazing value. Click the yellow "Add to Cart" button now!