This is a 2-set pack of D'Addario electric bass strings, model EXL170TP. They are NICKEL WOUND REGULAR LIGHT GAUGE strings with gauges of 45-65-80-100. These high-quality, USA MADE strings will enrich your bass sound. [Brand] D'Addario [Product Name] EXL170TP NICKEL WOUND REGULAR LIGHT GAUGE [Gauge] 45-65-80-100 [Number of Sets] 2 sets [Condition] Unused I am selling these as I no longer need them. Thank you for your consideration.