Solinco Hyper-G is a square shaped co-poly with an impressive combination of spin and precision. The medium string allows big hitters to take a massive cut at the ball without having to worry about overhitting. It is meant for Topsin players who like hitting balls that dive sharply and explode off the court should love this string. It has a gauge of 16 and a length of 12.2m. It is made It is endorsed by Sam Querrey and Donald Young.