Weston Vac Bags 12 x 18 (XL) 100ctCan be used in most leading brand vacuum sealers. 2 ply, 3. 0 mil thick BPA Free, non toxic plastic, no Bisphenol A Heavy duty bags with air removal channels for maximum freshness Use to marinate foods in minutes Made from FDA listed food safe materials Great for food and non food uses like preserving collectibles, valuable documents, silver or electronic items! Simmer or microwave food right in the bag