This set contains: A-Spiral/Chrome, D-Spiral/Chrome, G-Spiral/Chrome, C-Spiral/Chrome. 
Thomastik Spirocore cello strings are constructed with a flexible, multiwire spiral rope cope. They offer a distinctive open tone and easy playability. 

Features: 

• Thomastik Spirocore strings are constructed with a flexible, multiwire spiral rope core. 
• They are recommended for intermediate to professional players. 
• Distinctive open tone and easy playability. 
• Highly responsive across all strings.