Unopened, brand new. I bought these as a backup, but I prefer a different set of strings, so I'm selling them. ---- D'Addario EXL170BT Balanced Tension bass strings provide superior control and comfortable playability thanks to a mathematically calculated optimal gauge combination. In addition to the tone of the traditional XL Nickel Wound strings, they offer balanced and consistent feel and dynamic control for various playing techniques such as chording, cutting, fingering, and slapping. XL Nickel Wound strings are "The Player's Choice" and are selected by bass players of all genres around the world. All XL series wound strings are made with digitally controlled machines, ensuring excellent pitch, clear fundamentals, and unparalleled consistency. Each string features nickel-plated steel windings with outstanding brightness, making them a perfect match for magnetic pickups, and their versatile tone is favored by players across a wide range of genres. * Balanced Tension sets provide evenly balanced tension suitable for any playing style, including chording, cutting, fingering, and slapping. * Round wound strings made of nickel-plated steel for outstanding bright tone. * Environmentally friendly and corrosion-resistant packaging, ensuring they are always fresh when opened. * Made in the USA, high quality and high performance. * Gauge: Nickel wound - .045, .060, .080, .107