Each envelope measures 7.5×5.5 inches and is made of plastic that is not prone to tearing, ensuring the integrity of your documents during transit. The adhesive backing provides a strong bond to various packaging surfaces and leaves no adhesive marks when removed, keeping your packages clean. The long-edge opening design allows for quick and easy insertion of documents. Simply peel off the backing to use. The transparent design allows for clear visibility of labels and invoices inside, facilitating quick scanning of addresses and barcodes by delivery personnel. Suitable for invoices, packing slips, and shipping labels, these envelopes provide effective isolation from rain, dirt, and wear to keep documents intact.