.043 

.043 .043

This is an individual string for an electric bass, which has a diameter of .043 inches (about 1.09 mm). Electric bass strings are usually sold in sets with several strings of different diameters, but it is also possible to buy individual strings to replace a worn or broken string. String diameter affects the tone and tension of the bass, and musicians can choose different diameters depending on their playing style and personal preference.