About this item Clasp envelopes are crafted from 28 lb. brown kraft paper, ensuring strength and durability, its heavy-duty material is ideal for securing important documents during transit or storage. Envelopes feature both a clasp and gummed closure, providing double protection, its clasp offers reusable sealing, while the gummed flap ensures a tamper-evident seal. Catalog envelopes measure 10″ by 13″, perfect for a variety of documents, ideal for mailing large letters, legal documents, catalogs, and more. Clasp envelopes’ brown kraft color gives a professional and classic look, suitable for business and formal correspondence. Envelopes are sold in a packs of 100, ideal for businesses, educational institutions, and offices requiring reliable mailing solutions.