Deeply haunting and slightly hollow, the Jo-Ral Trumpet Bucket Mute provides a truly distinctive sound. Its soft, muffled tones add tremendous dimension and its unique straight shape allows for quicker transitions. Jo-Ral TRB-9 Bass Trombone Bucket Mutes are made of spun aluminum, and have been tested to perform evenly in all registers—creating an exciting tonal quality that results in near-perfect intonation. Jo-Ral mutes also feature neoprene-enhanced composite cork pads that provide extra durability. The result is a more pliable cork that grips well and doesn’t dry out, become brittle or break off—so it lasts longer while easily accommodating fine adjustments for a perfect fit.