ELIXIR guitar/bass strings have a significantly longer lifespan compared to conventional strings. The OPTIWEB coating provides a natural touch, similar to uncoated strings, and achieves a crisp, bright, and powerful sound. The natural tone is so appealing that you might mistake it for a raw string. OPTIWEB Light #19052 is a LIGHT gauge specification, commonly known as 10-46, which is a standard gauge for electric guitars. ■ Electric Guitar Strings ■ OPTIWEB ■ Light ■ .010, .013, .017, .026, .036, .046 Although counterfeit products are circulating, please rest assured that these are genuine and authentic.