100 Grey Mailing Poly Bags 15"x18" Large Mailers Shipping Postage Mail Postal Delivery Bag Packaging Packing

100% Opaque Mailing Bags. Safe and Secure- these plastic mailers have a sticky strip for easy closure. Once sealed, these bags are very hard to open allowing your items to arrive safely without risk of opening or tampering. Waterproof, lightweight and extremely strong- all our bags are manufactured using tough polythene that is at least 50 micron thickness, providing incredible durability within our postal system yet still being very lightweight, waterproof and burst proof Produced using co-extrusion technology and manufactured from 50-60 microns thickness (220 -240 gauge). Compresses 3 layers of polythene film into one making them very robust, opaque and durable. 100% moisture resistant.Material Composition : 100% Recycle How to Use:Make sure you have the correct sized mailing bag from our wide selection of sizes. Secondly, place the item intended to be shipped out to the buyer inside our strong mailing bag. Remove the self-adhesive strip. Seal the adhesive strip onto the mailing bag. Finally, place the shipping label onto the parcel. Your parcel is now ready to be shipped out to the buyer!