The Clairefontaine envelopes are ideal for every mailing need. Made from Kraft paper, they provide durability and sturdiness, making them suitable for mailing or storing documents. They measure 16.2 cm in length and 11.4 cm in width, offering ample space for letters, notes, or small items. With a convenient pack of 20 pieces, they are perfect for everyday use at the office or home. This selection of envelopes is a combined solution of quality and practicality to keep your shipments organized.