From the company's flagship line of Boomers strings, these GB-E9 Pedal Steel Boomers from GHS are intended for 10-string pedal steel guitars with E9th tuning. Made with nickel-plated steel tightly wrapped around a round steel core, these strings provide a bright, warm, and balanced sound with plenty of attack and sustain. Their versatility makes them well-suited for a wide variety of playing styles.