Prolong your tone with the same premium acoustic bass guitar strings that experienced players worldwide trust to keep their incredible tone longer than any other string available. Unlike other string brands, Elixir Strings coats the whole string. This protects not only the outer string surface but also the gaps between the windings where common tone-deadening gunk typically builds up in other brands coated and uncoated guitar strings. Who wouldn't love more quality playing time between the hassle and cost of string changes? Crafted to last, these acoustic bass guitar strings constructed with 80/20 (80% copper, 20% zinc) bronze wrap wire boast a bright, vibrant tone with plenty of mid-range presence and punch. Meanwhile, the NANOWEB Coating, redesigned specifically for bass guitars, allows a smooth, natural feel that also enhances grip and reduces finger squeak. Elixir Strings: Great tone. Long life.