AmazonSONICPRO POWERTENNIS strings are made in the USA and provide power, comfort and durability to players of all levels including university players Length: 12 m / 40 ft Thickness: 1.25 mm / 17 g, 1.3 mm / 16 g
SONICPRO POWERTENNIS strings are made in the USA and provide power, comfort and durability to players of all levels including university players Length: 12 m / 40 ft Thickness: 1.25 mm / 17 g, 1.3 mm / 16 g