Preserve shipment quality and protect products in transit with these polyethylene mailers. Impervious to moisture and punctures these dependable mailers are designed to handle the inherent stresses of parcel shipping. High-strength seams keep contents intact even if overpacked, while a perforated tear strip provides easy-open convenience. Gusseted bottoms allow poly mailers to accommodate thicker items such as books, binders, and catalogs.