This Ernie Ball 1645 Nickel Roundwound .045 Electric Bass Single String is a high-quality replacement for your bass guitar. Made with nickel-plated steel material, this single string is suitable for bass guitars and has a roundwound winding. The string gauge is 0.045 and it is uncoated. This guitar string is made in the United States and is perfect for those who want to upgrade their bass guitar. The brand is Ernie Ball and it has one string. It is suitable for beginners and experienced players alike. Buy this single string today and enhance your music!