Highest quality 18/10 stainless steel with stainless steel lid; plastic free; BPA free;Saves money by eliminating the need for disposable baggies;Medium size 6-inch by 5-inch by 1.75-inch holds a sandwich, burrito, sushi or many other choices of your favorite food or snack capacity: 17 ounce / 500 ml;Easy to clean; dishwasher safe;food containers are best for dry foods as lids are not water tight