Contains four medium containers-13.5cm x 10cm x 6.5cm-350ml, 16.5cm x 11cm x 6.5cm-500ml, 19cm x 12.5cm x 7.5cm-800ml and 21.5cm x 14cm x 8cm-1200ml.Size: 13.5cm x 10cm x 6.5cm-350ml, 16.5cm x 11cm x 6.5cm-500ml, 19cm x 12.5cm x 7.5cm-800ml, 21.5cm x 14cm x 8cm-1200mlMaterial: food grade polypropylene and silicone resinMaterial safety: BPA free, containers are made of 100% food grade polypropylene and silicone: , environmentally friendly. Super smooth surface on the inside to avoid grease and very easy to clean.100% airtight and leak proof-Your food stays fresh longer, you save money on shopping and no cleaning of messy accidents. certification: Can be used at temperatures of -40°C ~ 230°C and cannot be heated for over 5 minutes .Color: greenfood storage-Perfect for storing food indoors, outdoor activities, such as work, camping, hiking, travelling and more. Easy to assemble and carry, it is the best lunch partner for children, but also ideal for adults to develop healthy eating habits and the ideal choice as a gift.The foldable, compact design allows for easy storage, folds down to 1/3 of its original size for easy and compact storage, saving 60% more space, no more cluttered T^upperware cabinet.4x storage box