The Thomastik Peter Infeld 4/4 Viola D String introduces chrome combo winding for a brighter overall sound and enhanced player comfort. This string features a ball end which is suitable for musicians who require a reliable sound that maintains its voice over time. The D string is perfect for players who wish to concentrate on the sound of their own playing style. This strings produces a unique tone and flexible playability which is suitable for versatile musicians. For optimum versatility the 4/4 string features a medium tension gauge. The synthetic core is capable of producing unique tones for an array of musical styles. The 4/4 string also delivers instant bow response as well as dominant tuning ability. Peter Infeld The Peter Infeld Strings by Thomastik offer an array of rich and colourful sounds. Thomastik have created this series to provide players with a wide dynamic range and the ideal combination of power and subtlety. These strings are easily tuned and perform with prompt bow response. Specifications Core: Synthetic Winding: Chrome Combo String: D String Code: PI22A Viola Size: 14.5 Tension: 6.3kg Peg End: Green End Type: Ball