Purple Silk A and D cello strings are made with a high-tensile steel and are wound with a chrome steel. These strings have improved flexibility and a lighter touch. The tone is warm but offers great brilliance and power. The G and C strings have a rope core with chrome winding. They are easy to play and possess a clean tone and a powerful open sound. The set is highly responsive and has an even tonal and dynamic range. The special winding process allows for excellent durability and a longer life. An initial five minute play-in period is needed to reach proper tension and sound.