Southworth 25% Cotton Envelopes, 10, 4.125&rdquo; x 9.5&rdquo;, 24 lb, Antique Laid Finish, Ivory, 50 Envelopes 24 lb. envelopes for professional and special occasion correspondence Color: Ivory with antique laid finish 50 #10 specialty envelopes; Size: 4.125" x 9.5" Compatible with inkjet, laser printers, and copiers Ideal for mailing announcements, invitations and much more