La Bella Strings Electrics® Black Nylon Tape Wound sets are the secret behind the sound of the best professional jazz players in the world. These strings are handcrafted with a proprietary black nylon tape, wound on a hexagonal steel core. The result is a flat and extremely smooth string, which produces a warm, jazzy sound with zero finger noise. The Electrics® Black Nylon Tape Wound strings are ideal for archtops and hollow-body guitars.- Black Nylon Tape for warm, jazzy tone- Tension: Light- String Gauges: Plain Steel .012, .015, Black Nylon Tape .028W, .038, .048, .056- Made in the USA with American Wire- Packaged using MAP Technology (Modified Atmosphere Packaging) to prevent tarnishing and ensure freshness