Widely Used: Very suitable for guitars, basses and other stringed instruments. A great assistant tool for guitar or bass players. Weaken String Noise: Help overtones and resonances, and reduce unnecessary string noise on string instruments. Guitar String Mute Strap: Dimensions is .18.8x2.5x2cm/7.40x0.98x0.78in can be used with 6-string 7-string guitar. Easy To Use: Easy to install and remove, no tools or special installation required. You can adjust the strap to fine tune your dampener pressure. Colour:Black-White Material:flannel Size:18.8x2.5x2cm Package Contents: 1 * Guitar String Mute Strap Only the above package content, other products are not included. Note: Light reflection 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.