Sshhmute Practice Mute for Tenor TromboneDurable, lightweight, and high quality, the sshhmute Practice Mute is perfect for brass players to play when their surroundings make it inconvenient. Whether its warming up before going on stage, practicing in your bedroom, or playing in the school hallway, the sshhmute is the perfect choice. This one of a kind brass practice mute has next to no back pressure and true tuning consistency throughout the range of the instrument that's why the sshhmute is