For 100 years, Thomastik-Infeld has been producing fine orchestral and fretted instrument strings in our Vienna factory. Every set we make has been precision-engineered and exhaustively tested until we were satisfied that they fulfilled our intentions - and live up to your musical expectations as well. Wound on in advanced synthetic core, Infeld Red™ strings are 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. Infeld Red strings create a powerful, warm and expansive tone. These strings are excellent for soloists. Please also be sure to look at Infeld Blue, to peruse Infeld Red's perfect complement! Violin set, 4/4 size.