Specially ribbed for maximum air extraction the Deni Magic Vac 12x16 Bags lock in food s freshness for storage in the refrigerator or freezer. Or protect photos and baseball cards from moisture and safeguard a travel bag of cosmetics against spills. For use with the Deni vacuum sealer systems (sold separately) these 3-ply bags have polyethylene insides and gas-permeable outer layers for a super airtight seal. A convenient write-on strip allows you to record the contents and date packaged. Reusable and resealable the bags are microwave freezer dishwasher and boil-in-bag safe. Imported. Includes twenty 12in. X 16in bags