Often associated with lumbering elephants and overturned cows, the tuba is the largest and lowest ranged brass made instrument. Tubas replaced the ophicleide in symphonies during the mid 19th century, and come in varieties such as the sousaphone, contrabass, bass, tenor, and the subcontrabass. Similar to the trumpet, different pitches are also used: F, E-flat, C, or B-flat. The tube of a B-flat tuba is 18 feet long, a C tuba is 16 feet long, an E-flat tuba is 13 feet, and an F tuba is 12 feet.