Jo-Ral Bass Trombone Straight Mute - Copper Bottom

The Jo-Ral TRB-4C Bass Trombone Straight Mute made of spun aluminum, and has been tested to perform evenly in all registers. 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.