These Opaque Mailing bags incorporate a permanent self-seal closure and are made from an opaque 60-micron film. Our posting bags self-adhesive strong closure, water and dirt resistant air sealed bags made for Secure the inside and outside. This iSOUL Plastic Postage Bags can be used in any Courier or sealed Airtight storage Purpose, you will get these bags in five different sizes for any size packing material, with the self-seal lip make the parcel airtight and water-resistant for personal and business use. Safe and Secure Package Bags: 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. Plastic envelopes for posting: iSOUL Small to Large postage bags are very lightweight and sturdy.
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