Description: Set of 4 & ty Silicone Material : The 4 pack rectangle collapsible food storage containers which satisfy variuos needs of food storage. Made of food-grade silicone which is soft, unbreakable and non-toxic.Airtight Storage: The snap buckles and vent valve create an airtight space, maintaining the fresh of food for a long time.Save Space: Each container is collapsible to 1/3 its size for easy compact storage and organization. Microwave & Freezer & Dishwasher : It's dishwasher, freezer and microwave . Temperature resistance: -40°F to464°F/-40°C to240°C. Pull up the air vent valve on the lid then put it in the microwave to heat up.Multifunctional: The 4 pack collapsible containers include 350ml&550ml&800ml&1200ml size, can storage cereal, fruits, vegetables and leftovers in the fridge. And it also can be used as lunch box. Moreover, if you go outside for travleing or camping, it help to carry the food conveniently. Specification: Material: SiliconeCapacity: 350ml/12.35 oz,550ml/19.4 oz, 800ml/28.22 oz, 1200ml/42.33 oz Size Chart: When Folded:350ml: 12.7x9.2x5.8cm/5x3.62x2.28inch550ml: 16x10.2x5.8cm/6.3x4x2.28inch800ml: 18x11.5x6.2cm/7.09x4.53x2.44inch1200ml: 21x13x6.7cm/8.27x5.12x2.64inch Package Includes: 4 PiecesSilicone Collapsible Food Storage Containers : Color might be slightly different due to the color calibration of each individual monitor.Please allow slightly measuring deviation due to manual measurement.