Luxilon Big Banger Power Tennis String Ideal for big hitters and string breakers of all playing levels Allows for a full swing to be taken at the ball without a loss of control Luxilon Big Banger Sting is designed for Tour level power, control and durability for the ultimate performance Available in Gage: 18 (1.20 mm); 16 L (1.25 mm); 16 (1.25 mm); 15 (1.38 mm) Length: 40 feet (12.2 m)