The product is a pack of 500 white paper security envelopes with a double window design, specifically made for business occasions. Manufactured by Blue Summit. These self-seal envelopes are of size 500 pack and have a rectangular shape, perfect for ensuring the security of documents and packages. The envelopes feature a self-seal closure type, providing a tamper-evident seal for added security. With dimensions of 11.34×9.49×4.45 inches and a weight of 5.69 pounds, these high-quality envelopes by Pandri are ideal for professional use in packing and shipping.