Rotosound RS66LC Swing Bass 66 Stainless Steel Bass Guitar Strings 40-95Rotosound RS66LC Swing Bass 66 Stainless Steel Bass Guitar 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 of the stage. Gauges 40 60 75 95 Long Scale