Capacities: The set typically includes four sizes: 1,200ml, 3,000ml, 6,000ml, and 10,000ml.Material: Crafted with a double-walled stainless steel interior for durability and a hygienic, virtually unbreakable plastic exterior.Design: Features a secure locking system to maintain freshness and comfortable handles for easy transport.Versatility: Ideal for home gatherings, picnics, and travel, as they eliminate the need for reheating food in a microwave