Pirastro Permanent Soloist Cello set: 

Permanent by Pirastro is a steel string with a warm, round sound and a clear overtone spectrum. With a pliable left hand feeling, it produces a smooth lively tone. Stable with a very easy response, it is suitable also for electric or electrically-amplified cellos.

Set Includes:

• Permanent Soloist Cello A - Chrome/Steel: Medium
• Permanent Soloist Cello D - Chrome/Steel: Medium
• Permanent Soloist Cello G - Tungsten/rope core: Medium
• Permanent Soloist Cello C - Tungsten/rope core: Medium