DescriptionAre you worried about the oxidation of your guitar strings? Do you need a tool to rewind your strings? If so, stop looking. Our handy polished eraser is made just for you. Help you quickly polish guitar strings, save energy and time.Features-Color: Blue -Material: Eraser -Size: 4.00X1.80X0.80cm/ 1.57X0.71X0.31in- They havepractical function, which can well remove rust and oxidation from the strings . - The simple and practical design makes it a great gift for guitar scholars , they will like it. - This fret eraser is a simple and fast polishing tool which repairs scratches and quickly removes oxidation on frets.- Small and light, easy to store and use, very suitable for people who need it. - A wide range of usage scenarios, can be used for guitar strings, pipa strings, electric guitar strings,etc.