The Dunlop Robert Trujillo nickel wound 5-string electric bass strings are designed specifically for heavy metal bassists. You'll achieve a powerful, focused tone with clarity in the higher registers and a thick, booming low end to cut through dense mixes. Made using the same custom formulas as Metallica bassist Robert Trujillo's own strings, these nickel wound strings are built for non-tapered bass setups so you can emulate his monstrous tone. The strings' nickel-plated steel wrap wire provides warmth and sustain while the hex core yields a balanced tension for fast, articulate playing. Whether you're pounding out intricate rhythms or rumbling along with doom-laden riffs, these strings will hold up to your most aggressive techniques.