This Yonex Poly Tour Pro 1.25 is a durable, world-class string with a comfortable feel to reduce player fatigue. It offers great durability and a comfortable feel. Its string has a very soft polyester for those that want something durable but on the arm friendly side. Power players will love the control and feel they get from all areas of the court. A solid, durable string that is a great choice for aggressive, big-hitting players.