Yupon Little Silencer Bass Trombone Practice MuteThe Yupon Little Silencer Bass Trombone Practice Mute is the smallest, lightest bass trombone practice mute in the world! This tiny mute fits inside the bell in your case and weights only 3 ounces! Practice in your apartment, hotel room, or in the next room over from a sleeping baby without disturbing them! The materials used make it sturdy, yet lightweight, making it the right choice for students, amateur players, and professionals alike. About Yupon