Bonsenkitchen vacuum sealer roll bags feature a patented suction channel and double-sided design to remove air, prevent spoilage, and lock in freshness, flavor, and nutrition for longer food storage. Made from Bpa-free, food-grade material, these 11" x 50 ft rolls are safe for sous vide cooking up to 195°F (90°C), compatible with all major vacuum sealers, and ideal for customized bag sizes, saving time, money, and space for both food and household storage.