1. Portion Control: The compartments help in portioning out different types of food, ensuring a balanced meal. 2. Versatility: With separate compartments, you can pack a variety of foods without them mixing or leaking into each other. 3. Convenience: They are convenient for carrying multiple items without the need for separate containers. 4. Organization: The compartments help keep food organized and prevent items from getting squished or damaged during transit. 5. Leak-proof and Durable: Many three-compartment lunch boxes are designed to be leak-proof and are made from durable materials like plastic, stainless steel, or silicone. 6. Microwave and Dishwasher Safe: Some models are safe for use in the microwave for reheating and can be easily cleaned in the dishwasher.