Medium Light strings for fivestring electric bassguitar. Whether you live for a thundering thump, a rhythmic slap or an artfully woven line, Dean Markley Blue Steel bass strings will get you there. Cryogenically frozen with a blast of liquid nitrogen, Blue Steel strings deliver massive tone, resonance and longevity. These babies are built to last! Features set of five strings. String size: .045 / .065 / .080 / .105. / .128.