This lunch box is available in 3 capacities, including 800ml, 1200ml, and 1400ml, to meet different storage and meal preparation needs. It is constructed from 304 stainless steel, which offers stable performance and reliable durability for daily use. The container features a dual-lock design and an integrated carry handle for secure handling and easy portability. The sealing structure effectively prevents liquid leakage and maintains the cleanliness of internal contents during transportation. The sturdy stainless steel material resists deformation and is suitable for storing a variety of foods such as rice, vegetables, fruits, and snacks. The smooth internal surface facilitates easy cleaning and reduces residue buildup. The compact and practical structure allows for convenient placement in bags, backpacks, or storage spaces. The dual-lock fastening system enhances closure stability, while the integrated handle provides a comfortable and secure grip for carrying. The sealed design helps preserve food freshness and prevents spills or odors from escaping. The 3 optional sizes support flexible usage for individual meals, outdoor activities, office lunches, and daily dining scenarios. The overall structure is simple and functional, with no complex components, ensuring stable long-term performance. The 304 stainless steel material is sturdy and wear-resistant, supporting repeated daily use without easy damage.