These 10" x 13" brown Kraft clasp envelopes are ideal for securing, storing, and mailing large documents and bulky files. Constructed from heavyweight 28lb Kraft paper, they offer durability and strength for everyday business or personal use. Each envelope is equipped with a reinforced metal clasp and a strong gummed flap, providing a reliable dual-seal closure. The clasp is designed for repeated use, making these envelopes a practical choice for offices, legal settings, and home organization. Perfect for tax returns, reports, catalogs, booklets, and more, these envelopes are built to handle a variety of mailing and storage needs.