Product detailsTamper proof and self-adhesive courier bags / nylons, mailing bags or poly-mailer Shipping bags are widely used by e-commerce business, courier & logistics companies and other businesses. It has a white outer and black inner sides with an invoice pocket, to easily slip in your waybill details or Invoice.?Size is Medium, 30x48cm, 12/17 Inches (A3). Package quantity is 100 pieces (pcs).It can be written on with a marker. 110mm thickness, self-seal pressure sensitive adhesive on the flap and tamper evident. Once sealed, any tamper is clearly seen. You can now deliver your products to your customers in a secure, convenient and professional way. WHITE outer and BLACK inner waterproof courier shipping bag with a seal. Produced with an INVOICE POCKET to carry shipping labels(customer information).Courier bags are PLAIN FLIERS. Waterproof, Tamper proof with Invoice or receipt pocket. Suitable for proper packing/shipping items. It spells professionalism. Purchase of these bags? will ensure fulfillment of secure and convenient deliveries. Ensure to deliver your products across to your customers in a more unique and professional way, opt for this courier packaging bag packed in.