This Ernie Ball 1665 Nickel Roundwound .065 Electric Bass Single String is a high-quality option for any bass guitarist. The string is made of nickel-plated steel and is suitable for use with a variety of bass guitars. The roundwound design and uncoated surface provide a smooth and comfortable feel for playing. The string is produced in the United States and is sold as a single string, making it a great choice for those who want to replace a damaged or worn-out string. The 0.065 gauge is perfect for a range of bass guitars, and the coating type does not affect the sound or playability of the string. Overall, this Ernie Ball string is an excellent choice for any bass guitarist looking for a high-quality replacement string.