Stonelined Velvet-Tone 8″ Alto Horn Mute $ 31.68 Customer Reviews 1 of 1 people found the following review helpful I don’t even know what this is… …, July 16, 2014 By Richard G – See all my reviews Verified Purchase(What’s this?) This review is from: Humes & Berg Stonelined Velvet-Tone 8-Inch Alto Horn Mute (160) [Description & reviews]