Welcome to our store! 1. Strings are highly suitable for ukulele guitars as excellent accessories and have a long lifespan. 2. Carbon strings are characterized by a very bright tone (some carbon strings are indeed too bright), large volume, and long sustain and durability. 3. The volume and tone decay are not obvious with prolonged use, appealing to those with more interest in keyboard instruments. 4. The precisely wound bass strings produce a warm, unique sound that is very consistent. 5. The four-piece set can replace all strings on a four-string guitar. Item Type: Ukulele String Specification: Approx. 1st String: 0.52mm 2nd String: 0.65mm 3rd String: 0.74mm 4th String: 0.55mm 4 x Ukulele Strings (4 specifications) Your 100% satisfaction is our top priority. We will provide you with the best service. If you encounter any issues after receiving the product, such as damage or incorrect quantity, please contact us immediately, and we will provide you with the best solution!