JAM Paper #10 Business Envelopes - 4 1/8" x 9 12" - Ivory - 1000/carton lvory Envelope Size: #10 (4.13 x 9.5 inches) Quantity: 1000 envelopes per carton Features a straight flap and gum closure. Perfect for Business mailings, commercial mail, personal greeting cards, Invitations, or any announcement.