Compatible with Presto FreshDaddy vacuum sealers and most other leading brands Includes three containers: one large (2 quarts), one medium (1.5 quarts), one small (1 quart) Vacuum-tight seal locks out oxygen and moisture Helps to keep foods fresh in refrigerator or pantry Transparent to easily identify contents. Also Nestable and stackable for space-saving storage Silicone sealing ring prevents spilling, even when shaken Keeps food fresher up to 5x longer PFAS and BPA free and is dishwasher safe Note: Vacuum tube is not included with container set Valve button on lid releases vacuum for easy opening