• Freezer bags with Ultra-Zip airtight seal that guarantees leak-proofing even after multiple uses. • Assorted format including 12 bags of 1 liter and 8 bags of 3 liters for different preservation needs. • Flat base that allows the bag to stand upright for easy filling without spills. • Extra-resistant material that protects nutrients and prevents freezer burn or frost formation. • Made with 70% recycled and renewable resources for greater sustainability. • Resistant to extreme temperatures from -40ºC to +90ºC. • Includes a practical cardboard dispenser box that facilitates individual extraction of each bag.