100% Airtight and waterproof. 100% Odor proof. Stain resistant. Manufacturer's lifetime warranty. Microwave, freezer & dishwasher safe. Save food. An air-and-liquid-tight seal keeps food fresh and eliminates spills when accidents occur. Save space. Designed to stack for easy space-saving efficiency. Save money. Manufacturer's lifetime warranty, stain free material and versatile design means you won't need to replace this product ever. Made in Korea.