The Jo-Ral FR-AC Copper Bottom French Horn Straight Mute is made of spun aluminum, and has been tested to perform evenly in all registers. Finished with a copper bottom, producing a powerfully dark and rich sound. 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:
• Crafted from lightweight spun aluminum and copper
• Great for that classic jazz sound
• Near-perfect intonation
• Pliable neoprene-enhanced composite cork pads offer lasting durability and grip
• Soft felt cap for extra protection
• Made in the USA