Features:100% Brand New and High QualityVery 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.Fits all trumpetsThis Trumpet Practice Mute It produces the type of sound that is considered the "standard"in cup mutes， for most jazz musiciansSpecification:Material: AluminumLength: Approx. 13.5cm/5.32"Diameter of small end: Approx. 2cm/0.79"Diameter of larger end: Approx. 6cm /2.36"Package Included:1x Trumpet Mute