The Balu Regular Series Straight Tuba Mutes feature a fiberglass construction with an attractive wood veneer finish. Each mute includes three different thickness of mute cork that attach to the side of the mute with Velcro, allowing the player to adjust the fit of the mute to their particular instrument. The player can easily switch the thickness of cork to fit the mute to another tuba. The Regular Series offers excellent intonation and clarity in all registers, and include a mute side handle. In collaboration of top musicians and artists, Balu Mutes are able to provide some of the world's best mutes, including a Horn practice mute with negligible air resistance. Balu Mutes manufacturers mutes for Horn, Trumpet, Trombone, Euphonium and Tuba.