The Markbass Balanced Series Strings 4s 40-100 were designed in close collaboration with Italian bass legend Paolo "Pi" Costa to deliver a particularly rich sound for Studio and stage. Thanks to the special studio tuning, in which the outer winding of Nickel Plated Steel is applied to several stainless steel windings, the Bass strings deliver a deep and warm sound with a rich overtone spectrum. In addition, the Markbass Balanced Strings are characterized by a balanced and smooth feel.
The Markbass Balanced Series Strings 4s 40-100 at a glance:
String set for 4-string electric basses with long scale.
Developed in cooperation with Paolo "Pi" Costa (a.o. Eros Ramazotti Band)
Studio-Tuned for a balanced sound and a consistent feel on all strings
DR LMR-45 Hi-Beams Round Core Bass 4-Strings 45-105
Fender Stainless 9050L Bass Guitar St rings 
GHS Bass,4er,45-105,Boomers Roundwound Long Scale
D'Addario 4er Bass NYXL 45-105 45-65-85-105, NYXL45105
D'Addario 4er Bass NYXL 45-100 45-65-80-100, NYXL45100