Thomastik-Infeld is an Austrian company founded in 1919, located in Vienna developing and producing strings and rosins for bowed and fretted string instruments.
Thomastik-Infeld Vienna Handmade Strings Since 1919. A revolution in tonal sound and color for the discerning musician, Peter Infeld (PI) strings produce a rich spectrum of sound colors, the perfect blend of power and elegance, and a wide dynamic range. The strings deliver instant bow response as well as superior tuning ability. The soft left-hand feeling brings out the best in you and your performance. Choose from Tin, Gold and the unique Platinum plated and thus very powerful E-strings, and the Aluminum or Silver wound D-strings to achieve a made-to measure sound for each individual instrument and player.