For total ‘Faraday Cage’ protection, our Metallic Static Shielding Flat Bags with imprint, provide four layers of protection against static charges. The poly outer layer features a semi conductive static shielding, while the non-shedding metallic inner layer provides a complete barrier against electricity. Bags must be heat sealed for closure. Folding, stapling or accidental puncture void the anti-static properties of these bags. These bags come with no imprinting.