LunchBots Rounds – 16 oz. and 8 oz. Set LunchBots Rounds are ideal for packing messy foods to go. Completely plastic-free, the set includes two stainless steel food containers – 16 oz. and 8 oz. Both the containers and lids are made from the highest quality 18/8 stainless steel with a silicone seal to prevent leaks. LunchBots Rounds are perfect for baby food, salad dressings, dips, yogurt, applesauce, fruit, snacks, and more.