Can be used in all leading brand clamp style vacuum sealers with 15 bar;4 mil heavy-duty bags with embossed air-removal channels on one side, clear on the other;Not just for food! Use bags to preserve collectibles, valuable documents, silver or electronic items!;Vacuum sealing locks in freshness, flavor and nutritional value while extending food storage time;Made from FDA food safe materials, BPA and Phlalate Free