Caso Design specializes in unique, innovative products that exceed expectations with German design and engineering. Keep your food fresh for as long as possible with caso's professional food Vacuum bags. Compatible with casino food Vacuum Sealers, they are strong and tear resistant for longer lasting food storage. Even better, they're freezer safe protecting them from freezer burn, boil safe making them perfect for sous vide cooking, and microwave safe so thawing is no problem.