We are leading Manufacturer of Stainless Steel Lunch Box, Our Product is Safe Eco Friendly Material (BPA-Free), the material is Eco Friend. It is safe from endocrine disrupter by using proven quality stainless steel 18-8, And resouce recycling efficiency is easy even when product lifr is over. All raw materials used in Geos airtight containers are from Korea, and the entire process is managed and produced in Korea. It is product of " Korea' that you can trust and use. Stainless steel is a material with a higher thermal conductivity than glass or plastic material. Whend used in general refrigerators and frrzers, it can quickly transfer cold air to the contents and keep the temperature stable. So, it is most suitable airtight container material for maintaining freshness of contents and long-term storage. Strong corroson resistance of stainless stell is against salinity, rust and polllution. And especially it has a excellent advantage to prevent stain and smell of various content.