Trumpet Practice Mute Anti-Damage Cork Dampener -XZ typeIf you want to change the sound of your trumpet， do so with this lightweight aluminum mute which has a protective anti-damage cork surround and fits securely in the bell so the sound of the trumpet is altered and dampened.Fits all standard trumpetsBrand new and unusedVery useful when you feel like playing your mute in the middle of the night. Your family members， neighbours and pets will be glad you purchased this.This Trumpet Practice Mute It produces the type of sound that is considered the ��standard�� in cup mutes， for most jazz musicians.