14" x 18" Heavy Duty Shrink Bags 250/CaseOur heavy duty shrink bags are made from 100 gauge pvc shrink film to create a secure and clear professional package. These bags are NOT FDA approved. Use our heat sealer to seal the shrink bags then use a heat gun to shrink the film to conform to your product. See also our domed style shrink bags as well as our non shrink polypropylene bags.