For players who love vintage tone and smooth feel, Pyramid Nickel Classics are a standout choice. Crafted with a round steel core and wrapped in 99.2 % pure nickel, these strings deliver warmth, clarity, and sustained resonance you won’t find in standard hex-core sets. Features & Details: Round core construction requires careful winding - the payoff is excellent vibration response and longer sustain. Pure nickel wrap delivers a silvery warmth and vintage character, especially suited to blues, jazz, classic rock, and any time you want “retro” tonal texture. Available in multiple gauges and variants Note: For round-core wound strings, always twist sharply before cutting to prevent the nickel wrap from unraveling. Tone & Use: These strings are ideal when you want a classic, warm tone with smooth highs and good sustain, especially on vintage or retro-voiced guitars. They’re less aggressive in brightness than modern nickel-plated steels, making them a great match for players seeking more musical expression and less harsh edge.