Grain containers are an important part of storing and transporting grains such as wheat, barley, and corn. The most common grain containers are silos (4 letters), bins (3 letters), feedbags (7 letters), and barleysacks (10 letters). Silos are large cylindrical structures made of metal or concrete, used to store large amounts of grain. Bins are smaller containers, usually made of wood or metal, used to store smaller amounts of grain. Feedbags are small bags made of cloth or plastic, used to transport and store small amounts of grain. Barleysacks are large sacks made of cloth or plastic, used to transport and store large amounts of grain.