Most storage containers take up precious cabinet space when not in use and usually require the lids and bases to be stored separately - which makes finding and pairing them 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 color-coded too, it's very easy to match lids with bases when you need them. All containers are BPA Free and feature lockable, airtight and leakproof lids making them perfect for fridge/freezer storage and for taking food on the go.