Material: Made of durable microfiber material. You no longer have to worry about dust on your guitar and prevent string breakage caused by oil, sweat and moisture.EASY TO CARRY You can take it with you as it takes up very little space, and you can clean it immediately after playing to keep your instrument clean.Design The double sided push button with ergonomic handle is sensitive and will not loosen. The 360 degree design is great for removing dirt from the strings and restoring the sound experience, while the strings and bottom of the guitar can be easily cleaned, making the work more efficient and less time consuming.How to Use Make sure each string is evenly distributed between the fretboard cleaners, and then slide the strings back and forth to complete the cleaning. Excellent cleaning performance, no additional tools required.Use: for strings and body of acoustic, bass and electric guitars. This string washing machine can also be used for acoustic and electric guitars and basses. Note: The data are all measured manually, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.