Used this for my Wilson Juice 100S racket. They're super durable. Before I was getting about 5-7 hours of play before breaking my old multifilament string. These are at least double that timeframe. I tried the Wilson Revolves but they had no power at all. I'm able to generate a good amount of power and spin with these strings. Highly recommended. I'm a 3.5 player (singles, doubles, and mixed)Great stringGreatVery soft on the arm, good power and durable. Strung @ 52Love it...got the best of both power and touch...need to purchase more of it.This is a very stiff string, comparing to Tecnifibere. It hurts my arm after one night of play. I used to use Tecnifibere which is very soft and comfortable. Luciano provides Good amount of spin, and low power.Strings are in excellent condition and priced reasonably.had been using the grey string for years. this brown string plays better overall.. better feel and control.