Features: Guitar fretwraps for reducing unwanted string noise. 3 colors for option: black & purple(for normal 6-string acoustic/ electric guitars), grey (for 7-string classic guitar/ bass). Soft cotton material, no any damage to your guitar strings. Easy to use, no tools or special installation required. A great assistant tool for guitar/ bass players. Specifications: Color: Grey(optional) Fits: 6-string acoustic/ electric guitars(Black & Purple); 7-string classic guitar/ bass(Grey) Item Length: 18cm/ 7.1in(Black & Purple); 20cm / 7.9in(grey) Package List: 1 * Fretwrap