Rotosound RS665LDN Roundwound 5-String Long Scale Bass Strings - Standard (45-130)Rotosound RS665LDN 5 String Long Scale Coated Nickel Swing Bass Electric Bass Guitar Strings 45 130A nickel coated version of our best selling Swing Bass 66 strings. This is the roundwound string that James How and John Entwistle perfected into what was to become the industry standard. The bright, punchy, high energy sound of Swing Bass 66 strings is a major part of early rock music history and brought the bass player from the back line to the front