Babolat RPM Blast Tennis String - 200m Reel. The Babolat RPM Blast Tennis String is a 1.25mm (17G) thick tennis string constructed from a high density co-polyester. Thanks to the cross-linked silicone coating the RPM Blast provides maximized spin for expert players. The Babolat RPM Blast has been chosen by Raphael Nadal, Jo-Wilfried Tsonga and Samantha Stosur, world's top players.Key features of the Babolat RPM Blast Tennis String - 200m Reel. 17 gauge - 1.25mm thick. Octagonal shape and the cross linked silicone coating provide a maximized spin. High density co-polyester construction offers a great combination of power, control and stability. The item "Babolat RPM Blast Tennis String 200m Reel" is in sale since Monday, February 26, 2018. This item is in the category "Sporting Goods\Tennis\Strings". The seller is "sweatband" and is located in London, United Kingdom. This item can be shipped to United Kingdom.