D'Addario XL Electric Guitar strings - are world-renowned as "The Player's Choice" amongst guitar players of all genres and styles. XL strings are wound with nickelplated steel and are known for their distinctive bright tone and excellent intonation.

Included with the 5 PACK strings - is the revolutionary Planet Waves S.O.S. Guitar/Bass Tuner pulses two out-of-phase LED light beams directly onto the vibrating string. When the string is out of tune, the two lights will visually dance on the string being tuned. As you approach in-tune status, the movement slows down and eventually stops when you are perfectly in tune. This revolutionary visual tuning system enables precision tuning in silent or noisy environments, without the need for audible sound or sensing of any kind.

D'ADDARIO CHROMES FLATWOUND, High Finish Ribbon Wound - are the world's most popular flatwound strings and revered for their warm tone and ultra-smooth feel. Stainless steel underwindings on hex cores build a foundation for the delicate outer ribbon winding. After the winding is applied, each string goes through 3 polishing steps.