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 about 2 hours. 2 Tier for defferent foods, and a hidden space for snacks. Pack and eat your healthy meals at work, school, gym or whenever you’re outdoors