Viola string, D for all violas to 39cm playing scale (16.5" back)
Recommended for violas with a playing scale of 35-38cm which covers most violas of back length 15-16.5 inches
Grade 8+
Highly recommend
Pros: As far as I know, Peter Infeld has the longest life among any synthetic core strings in the market. The tension data printed on the envelopes may look very strong, but in reality my fingers didn't feel very differently, very easy for my fingers. The sound is brilliant and focused, which reminds me of Oliv Strings in the best condition. The pitch becomes stable within a couple of days. Unlike Dominant, no metalic sound at the beginning. The price is high but it is worthy. The high price is paid off because of the long life. Highly recommend.
Cons: The A string. I use Larsen instead.