Material: PP+PEColor: WhiteSpecification: 4pcs/set (350ML+700ML+800ML+1600ML)Size:350ml-16.5*9*4cm700ml-16.5*9*8cm800ml-23.5*13.5*4cm1600ml-23.5*13.5*8cmFeatures:1. Our food preservation box is made of food-grade PP and PE materials, which are not easily broken, safe and environmentally friendly, can withstand temperatures from -20 degrees Celsius to 120 degrees Celsius, and are not easily deformed, making them completely microwaveable or freezing safe!2. These high-grade plastic food containers are microwave safe and can easily reheat food in a few seconds. In addition, you can also prepare meals in advance and keep them fresh, do not put the lid in the microwave.2. These storage containers are the best choice for you and your children. Unlike most poorly prepared foods, they will give your food a strange taste and smell. You can pack fresh salads and fruits here. , Carrots or any dry snacks, please make sure your food can stay fresh, tasty and healthy.4. Eco-friendly tableware, without sandwich bags or disposable containers, plates or trays, can be used for healthy snack storage and salads, and can also be used for weight control and weight loss.Instructions for use:It can be used to heat food to 120C in a microwave oven.It can be used in the refrigerator freezer to -20C.When heating, leave a small gap in the lid to release steam.The 4-piece set includes:1 * Food box (16.5*9*4cm, capacity 350ML)1 * Food box (16.5*9*8cm, capacity 700ML)1 * Food box (23.5*13.5*4cm, capacity 800ML)1 * Food box (23.5*13.5*8cm, capacity 1600ML)Packing list The 4-piece set includes: 1 * Food