Food-grade PP plastic and durable 304 stainless steel lunch container set. Superior temperature insulation keeps food warm for up to 3-4 hours. Leak-proof design with double silicone seal and clamshell exhaust valve. Portable and ideal for portion control. Available in white, blue, and brown. Includes an insulated lunch bag. Features 1. Food Grade Material: Stackable lunch boxes made of high-quality food-grade PP plastic and durable 304 stainless steel. Odor-resistant and safe for daily use. Stylish design suitable for men, women, and children. 2. Superior Temperature Insulation: Vacuum insulation technology helps retain heat for up to 3-4 hours, keeping food warm and ready to eat. No need for reheating. Maintains optimal food temperature for extended periods. 3. Leak-proof & Convenient Design: Double silicone sealing ring prevents leaks and locks in freshness. Clamshell exhaust valve allows steam to escape, making it easier to open. Integrated handle for easy carrying. 4. Lunch Container Set: Includes two large containers (620ml) and two small containers (420ml) to meet various meal needs. Ideal for storing soups, rice, pasta, salads, fruits, and other hot or cold foods. Includes an insulated lunch bag for enhanced portability and thermal performance. 5. Ideal for Portion Control: Helps manage meal portions and supports healthy eating habits. Specification Material: Stainless steel, PP Color: White, Blue, Brown Size: Large: 12 x 9 cm, Small: 12 x 7 cm Weight: 565 g Capacity: 420 ml, 620 ml Package Includes: 2× Lunch Containers (with Knife and Fork) 1× Lunch Bag