Diadem Pro X

Diadem Pro X is the most powerful and firm option for string in the Diadem line. Designed with the help of current pro tennis players, this poly string is designed to provide a stiffer option than the Flash string, with a hexagon cross section. The firmness results in an explosive response off the string bed with adequate spin production from the edged shape.Length: 40 feet / 12.2mColors:  Silver, Blue, OrangeGauges Available18 (1.15mm) Best feel17 (1.20mm)16L (1.25mm)16 (1.30mm)15L (1.35mm) Most durable