1.10L PE+PU+PS lunch box 2.Warm/Cold storage 48 hours 3.Food-grade environmental material Detailed Product Description 1.10L PE+PU+PS lunch box2.Warm/Cold storage 35 hours when cover the lip.3.Food-grade environmental material,non-toxic,non-rotten.4.With high density PU foam inside cover and box-body,and high sealing.5.have widely use in human life,such as,food and beverages for sport,fishery, ...