[Italy Aquila Ukulele strings] reproduce the sound of your gut is the Nile gut strings for string manufacturer "akui-ra" while improving the weaknesses of the gut strings. Durable for a long sasutein and rich sound while overcoming of zero and pitch due to temperature changes such as possible. [RED Series Set of Strings] copper for ukulele string set. Nile gut to adding your copper based with a moderate density and flexibility in all conditions. Upholstered in sumptuous to make for you, and thin gauge, while a clear and bright sound. The Red String (all strings).