Rotosound RUM40 Ultramag Bass Set 40-100

Rotosound RUM40 Ultramag Bass Set 40-100

Made from a special "Type 52" alloy with increased magnetic and corrosion resistant properties. Premium nickel/steel alloy long scale roundwound strings. Higher magnetic content for more power, volume, and sustain. Low coefficient of friction to improve tuning stability in all environments. Corrosion resistant properties for longer string life. Rotosound ULTRAMAG strings are manufactured on custom built machines designed and built in the UK. Computer controlled winding and tension control ensures consistent tension to bring you new and exciting sounds!