Features: 1. Not afraid of high temperature, microwave heating 2. Not afraid of low temperature, can be put in the refrigerator, no deformation, no odor 3. Visible lid, no need to flip the lid to find food 4. It has depth, large capacity, and can hold sandwiches and other pastries without being squashed 5. Can store handle, portable grip 6. The buckle design on both sides, the lid and the box body are firm and tight 7. Material: PS+PP 8. Dimensions: single layer 13.5 x 7.4 cm, double layer 13.5 x 13.7 cm 9. Weight: 192g for single layer, 318g for double layer Precautions: 1. It can be heated in a microwave oven, do not put the upper cover and the partition into heating 2. It is recommended to heat in a microwave oven on medium and low heat, and the heating time should not exceed 3 minutes 3. It is forbidden to use steaming appliances, ovens, etc. for heating 4. This product is not a purely sealed product, so this product is not suitable for soups and other succulent dishes 5. The lunch box cannot be placed upside down or on its side to avoid leakage 6. Do not put pure oil into the lunch box for heating