The set of 2 smart tubes, are perfect for creating and transporting travel size quantities of personal care products, beverages, and condiments,  simply fill and go,  each smart tube is leak-proof and spill-proof,  made from food-grade silicone,  great for travel, sporting events and outdoor use,  each tube holds 2 ounces (60 ml)of liquids so they are 3-1-1 carry-on compliant