Thomastik IR100 Infeld Red (4/4, medium tension)

Wound on an advanced synthetic core, the Infeld string system is designed to cover the entire tonal spectrum, enabling players to achieve string-by-string tonal preferences without the headaches of uneven string-to-string tensions.

- MI-E Stainless Steel / Gold plated (removable ball end) - LA-A Composite core / Hydronalium wound (ball end)
- RE-D Composite core / Hydronalium wound (ball end)
- SOL-G Composite core / Silver Wound (ball end)

Hydonalium (alloy from aluminium, magnesium, manganese).