Reliable material--use durable plastic and soft fabric, ensure long lasting and excellent work, while not hurt the strings Effective string cleaner--just repeatedly slide up and down, clean every string throughly to prolong its lifetime Comfortable to use--come with a non-slip curved handle, easy to pinch and control Convenient to carry--adopt compact size and light weight, for saving space and easy carry Wide application--use in cleaning strings of guitar, bass, ukulele and other instruments