Aquila Red Series 83U Soprano Ukulele …

Aquila Red Series 83U Soprano Ukulele  ...AQUILA – Aquila Red Series 83U Soprano Ukulele Strings (Gcea Tuning) Red
For their Aquila Red Series String Sets, Aquila starts with Nylgut and then adds red copper powder to increase the density of the string. This results in a stiffer string capable of lower tunings, less breakage and better intonation.
AQUILA, Ukulele Strings 53271