Edgy with a loud meaty buzz the tenor trombone bubble mute offers a wonderfully distinctive sound unmatched by any other. Its large bubble shape produces free-blowing sound in all registers and it fits all tenor trombone bells. The Jo-Ral TRB-3 Tenor Trombone Bubble Mute has a unique shape and spun aluminum construction that give it a distinctive tone especially desirable for jazz musicians. 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. Features: Fits all tenor trombones Crafted from lightweight spun aluminum Free-blowing sound creates a louder buzz Pliable neoprene-enhanced composite cork pads offer lasting durability and grip Soft felt cap for extra protection Made in the USA