100% airtight & watertight. 100% odor proof. Stain resistant. Manufacturer's lifetime warranty. Microwave, freezer & dishwasher safe. Set contains: 1 - 1.3 cups/.32 qt/.3 lt - plus lid, 1 - 3 cups/0.74 qt/.7 lt - plus lid, 1 - 7.6 cups/1.9 qt/1.8 lt - plus lid. Save food - Unique design assures an air-and-liquid-tight seal every time to keep food fresh. Save Space - Comes in a variety of sizes to fit every need and is designed to stack for space-saving efficiency. Save Money - Eliminate the need to ever purchase additional storage products due to lifetime warranty, stain-free material and versatile design. Made in China.