Thomastik Spirocore strings are made of a multi-wire steel core wound with chrome steel, aluminum, silver or tungsten wire. The strings sound well balanced, both when bowed and pizzicato and give a good response.
The string sets are composed as follows:
Thomastik has terminated the fabrication of small sizes. Some sets/strings are still available.
Click here for the datasheet of Thomastik Spirocore violin strings.