Simply rub your strings with our products to remove rust and dirt, restoring their shine and improving their feel. To get the instrument more in tune. Such a professional eraser is very practical whether it is for your own use or for others. Features -Color: Blue -Material: Eraser -Size: 4.00X1.80X0.80cm/1.57X0.71X0.31in - They are practical and mulitifunctional, which can effectively polish the guitar strings. - You can cut them into different shapes to meet your various needs according your using conditions. - These erasers are simple and quick polishing tools that can repair scratches and quickly remove . - Small and lightweight, there is no complex using requirement, easy to store, kids and students. - Flexible polished erasers can be effectively attached to the guitar wire, reducing the damage to the fingerboard during use. Package list: 10 eraser