The tiffin food carrier is an ingenious system of stacking stainless steel containers used as lunchboxes by millions of people everyday in India and south Asia. developed in India over 200 years ago, tiffin"s are simple to use and feature a sleek, modern style. to use, fill each container with fruit, salad, sandwiches, veggies and snacks. stack the containers on top of each other and close the clasp. the 2-tier oval design is perfect for transporting kids snacks and lunches for school, day trips and hiking. tiffin size is 5 by 3.75 by 3-Inch height. tier heights are 1.375-Inch and 1.5-Inch. food safe stainless steel construction makes for easy transportation of snacks and a great alternative to wasteful plastic baggies.