The Thomastik Dominant 142 1/2 Cello A String has a flexible synthetic core that provides a warm clear tone. Thomastiks synthetic strings are resistant to change from humidity which provides durability and reliability whilst still having the true tone of gut. The medium size gives a well balanced sound that will comfortably compliment all 1/2 scale cellos. The classic tone has made the Dominant series a classic for synthetic strings. For a versatile A string with strong overtones and a more mellow sound than steel the Thomastik Dominant 142 1/2 is an ideal choice for live studio and casual cellists.