These 9" x 12" brown Kraft clasp envelopes are built for durability, security, and versatility—ideal for mailing, organizing, or storing letter-sized documents. Made from heavy-duty 28lb Kraft paper, they securely hold larger files such as tax returns, reports, catalogs, and booklets. Each envelope features a reinforced double-prong metal clasp for repeated use, along with a strong gummed flap to ensure a tight seal. The dual-seal design offers reliable protection for both personal and professional mailings. Whether at home, in the office, or for legal and business use, these envelopes are a dependable solution for everyday tasks.