With a unique patented seal these zyliss food storage containers can keep food fresh for up to twice as long as their original packaging the patented seal is integrated into the clip and close lid and ensures no gaps are left to act as food traps so these containers are ultra hygienic stackable lids for easy storage and safe for use in the microwave freezer and dishwasher capacity 23ltr dimensions 100h x 170w x 225dmm