Since the 50s and 60s, La Bella's DEEP TALKIN' BASS Stainless Steel Flat Wounds have been the choice of professional bass players and continue to be the standard for the best sounding Flat Wounds on the market.- Stainless Steel Flat Wound; hand-polished for incredibly smooth finish- Light Tension- String Gauges: .043, .060, .082, .104- Made in the USA with American Wire- Packaged using MAP Technology (Modified Atmosphere Packaging) to prevent tarnishing and ensure freshnessThis particular set is NOT suitable for basses with bridges that require strings to pass through the body of the instrument. Please refer to our “Thru-Body” Flat Wound sets (e.g. 760FX-TB) for through-body instruments.