If you're looking for solid power, excess spin, and soft-feeling comfort, the Yonex Poly Tour Pro 125 Tennis String could be just what you're looking for...

No matter what your swing speed, this string suits players of all levels looking to up their pace and aggression without any extra strain on the arm. 

This slightly thicker 16G set will provide players with extra comfort and durability, making it better suited to heavier hitters.

Yonex Poly Tour Pro 130 16G Yellow Tennis String Set