Medium long-scale 4 string set for acoustic bass guitar from Nylon Tapewound series that contains black nylon tape-wound strings, offering the ideal combination of warm, deep tones with an ultra-smooth feel. This set delivers a vintage tone ranging from the “thump” of an upright bass to the focused depth of traditional flat-wound strings. Strings are wound using a flattened black nylon which is polished to an ultra-smooth finish and provide an optimal tension, gauged to fit properly in standard bass saddles and nuts. They may be used on both fretted or fretless basses. Package of the set is environmentally friendly and corrosion resistant so it keeps strings always fresh. D’Addario strings are made in the U.S.A. Gauges: .050, .065, .085, .105.