The ultimate bright sounding bass string. These strings start with a 92/8 phosphor bronze under-wrap wire over a hard-tempered hexagonal steel core. Then, the "Fusion Winding" process, exclusive to S.I.T. uses an electrical calibration technique to integrate the strings cover winding with its core. This innovative method uses a string into one super flexible mass, eliminating dead spots that occur during the string life. These RB (Rock Bright) bass strings are available in a variety of gauges and combinations including a long and extra-long scale. All RB bass strings are made with the USA made cover-wrap wire over the USA made hexagonal core. These strings are available in either Nickel (NRB) or Stainless Steel (SRB). Features: Bright Sounding Bass String. Phosphor Bronze cover wrap. 92/8 True Phosphor cover for great warmth and tone. Moisture Barrier Packaging to keep strings fresh. 1. Authorized Dealer - Full warranty 2. Best Price Guarantee - We will beat any price 3. UP to 6 months Zero Interest Financing available 4. This product is available and ready to ship