Food storage container, 3,7L No gaps. No germs. No leaks. Say goodbye to soggy salads with MasterSeal Fresh Box. Unlike conventional containers which have a removable seal that�s prone to gaps, the MasterSeal Fresh Box range has a unique freshness seal built right into the lid. When closed, there are no gaps - which means there�s no space for germs or odours to get in. So, your food stays fresh longer. It�s 100% leakproof too, so you can carry it in your bag without risk of spills.