Kala offers its own brand of excellent strings that we highly recommend. We also recommend Aquila brand strings. There are also a multitude of string manufacturers making excellent ukulele strings. You can purchase them here on our website or from your local retailer. Feel free to experiment with different strings until you find the one that feels and sounds just right. However, be sure that you purchase the correct string set to match your instruments size and tuning. Failure to do so could lead to instrument damage that might void the warranty.