Mammoth Slinky Strings have been developed for super low tunings including Drop A, Drop B and C standard while still maintaining that iconic tone and feel that Slinkys are known for. They provide a punishing low end and brutally thick tone but maintain the optimal tension and definition. Ernie Ball Nickel Wound strings feature the best of both worlds; a steel core wound with nickel. This combination of steel and nickel creates that well-balanced sound.