This insulated lunch box uses high quality stainless steel material, health, and safety Environmental protection. Wide range of motion. use, suitable for outdoor picnic, schools, offices, large capacity to meet daily needs: - Made of stainless steel, reusable, durable and antirust - Leak proof: lock sealed to lock in freshness, leaks and odors, double wall vacuum insulated design is tight to prevent leak and spill. - Insulation performance: high-quality insulated lunch container keeps your healthy, homemade delicious lunches hot for 2 hours. - Pack and eat about your healthy meals at school, gym or gym or school. whenever you're away from home At your convinence. - Material: Stainless Steel