KAMAKA Ukulele Strings Tenor Black Nylon Hard This is a set with a Low G string on the 4th string. *Please note that this item may sell out on other platforms.* Excerpt from the web: The 1st and 3rd strings are thicker than other companies' strings, which results in a sound with a rich tone. *You may need to widen the bridge groove when installing.* *This product is a tenor ukulele Low-G set. It is a wound Low-G string.*