Storage containers with a vacuum seal system your food stays fresh longer and retains much more flavour pressurized on the lid middle or side wall the container is closed airtight and odour proof so you keep your food fresher and protect it from external influences to open lift the tab briefly features ideal for freezing microwave except lid dishwasher safe the set consists of 1 container with 580 ml 1270 ml 1980 ml material polypropylene silicone thermoplastic rubber