Amazon.com : Pro's Pro Red Devil - Red 1.19mm Tennis String 200m : Sports & Outdoors
Toalson Rencon DEVIL SPIN Co-Polyester Tennis String with Spin
Topspin Tennis String Top Rotation - 110 m 'Unyielding Killer' Tennis String for Spin and Power, String Thickness: 1.26 mm : Amazon.de: Sports & Outdoors