Our Blank License Plate Envelopes are perfect for mailing license plates and other important documents. Constructed from durable 32# brown kraft envelope stock. Envelopes measure 13" x 6-1/2" with a 2" flap. These are moist seal envelopes, which means that the user must apply moisture, either by licking or through other means, to activate the adhesive strip. Made in the USA. Sold in packages of 100.