Perform and record clean timbre without unwanted string noise. Easy to use, no tools or special installation required. Fastener design, easily adjust the force required by the muffled sound, when idle, can be conveniently pushed to the guitar . Suitable for live performance and recording studio, saving both time and labour. Professional accessory for 7 strings acoustic guitar, electric guitar, classic guitar, bass or other guitars with fingerboard, and also applicable to 6-string guitar. Item Size:190x30x24mm/7.48x1.18x0.94in Colour:A:White Material:pure cotton+neoprene+ABS Package Contents: 1 * Guitar String 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.