In order to achieve the most brilliant straight mute sound, Soulo Mute uses the highest quality aluminum. The mute will never fall out of the bell because of its unique neoprene composite corks which "lock" the mute inside the bell. Features:
• Patented hemispherical bottom with crimp-free connection, which allows for a perfect pitch.
• Free-blowing, no air disturbance, aerodynamic design.
• The highest quality aluminum delivering a brilliant sound.
• Lightweight and super easy on the chops.