●Rotosound Ukulele Strings Set Baritone Nylgut RS85B Medium 24 31 31 28 ●Material is very stable in tune, short stretching phase after winding, sound very natural gut-like ●for baritone ukulele ●Rotosound has been manufacturing instrument strings and accessories for more than 60 years in the family-run factory in Kent, England. As the inventor of the roundwound bass string and the founder of rock n roll sound, the company has been at the forefront of the international music industry since 1958. ●Rotosound - Strings are synonymous with the British Tone and have been and are used by almost all bands of the British Invasion, in punk, new wave, rock, brit pop and indie.