15910 Mute Holder. Holder for 3 mutes, can be attached onto tubes with a diameter of 1 to 1 1/4 inches. The holder is suitable for all common mutes for trumpets, cornets and Flugel horns. The holder rings (2 large sized, 1 small sized) are completely rubberized to protect the mutes from scratches and collapses for an easy transport.