Certain containers are commonly used for storing and transporting food, liquids, and other items. Jars (4 letters) are typically made of glass or plastic and have a wide mouth with a lid or closure. TUBES (5 letters) are cylindrical containers usually made of metal, plastic, or cardboard, and are often used to store toothpaste, paint, and other viscous materials. Eggcups (7 letters) are small, bowl-shaped containers used to hold eggs while they are being boiled or cooked.