These containers and their snap-on lids are made of light, nonporous stainless steel. Unlike some plastics, stainless steel doesn’t contain toxic additives that can leak into your food. Unlike glass, it won’t break. Two versions, the Duo and Pico, have a divider to neatly separate crackers from cheese, fruit from nuts, or sandwiches from a pickle. Look for LunchBots at a natural grocery or order online from www.lunchbots.com. Prices range from $13 to $16.