The problem with most storage containers is that they take up precious cupboard space when not in use and usually require the lids and bases to be stored separately - which make finding and pairing both elements a hassle. With the unique design of nest lock, container bases nest neatly inside each other and lids clip conveniently together for efficient, space-saving storage. As each element is colour-coded too, it's very easy to match lids with bases when you need them. All products in the nest lock range work together so you can build your own collection to suit your needs, whether it be for fridge/freezer storage, batch cooking or family lunch boxes. All containers feature lockable, airtight and leak-proof lids.