The purpose of the is to make the sound of the violin during practice lighter. During use, it only changes the volume of the piano sound (the timbre change), but does not change the sound quality of the piano sound (the pitch remains unchanged).For beginners, bows often make a harsh noise when they are unskilled. With a mute, you can reduce the impact of noise on others, and you can practice with confidence.Designed for Tenor Sax.Made of high quality aluminium alloy, this mute is rustproof, colorfast and .With this mute, the sound of sax be reduced 20%~40%, others not be bothered while you are practicing.colour:Silver & material:Aluminum alloysize:9.3x9.3x5.6cm Package Contents:1x tenor saxphone muteOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.