These zyliss food storage containers have a unique 100 leak proof seal which is integrated into the lid to avoid gaps and food traps for a more hygienic way to store food this airtight seal and clip lid keep food fresh for up to twice as long as its original packaging meaning you can prep more in advance and reduce wastage to save space during storage the lids are stackable and these containers are safe for use in the microwave freezer and dishwasher capacity 1ltr dimensions 70h x 1