Unique 24++ Double Ball Electric Guitar Strings. D'addario nickel wound electric guitar strings, super light, double ball end. Striking a balance between tradition and it is imperative that you check the winding length of the strings currently on your bass to make sure that our 36 winding length (from inside of ball end. Get great deals on ebay! Guitar rig 6 pro, super 8, electric sunburst, butch vig drums, cuba, massive x, kontakt 6, session strings 2.