4X3 Brown Envelope Box of 1000 Pieces Bulk brown envelopes designed for everyday mailing and document storage. This economical box contains 1000 pieces of standard 4x3 inch envelopes, ideal for small items, invoices, and correspondence. Constructed from durable kraft paper, these envelopes offer reliable protection during transit. Perfect for businesses, offices, and organizations requiring consistent envelope supplies. The compact sizing makes them suitable for greeting cards, photographs, and lightweight documents. Stock up with this cost-effective bulk option to maintain steady inventory levels throughout the year.