Tecnifibre NRG2 - String Reel - Black weight-heavy Its tight 18x20 string pattern

Its tight 18x20 string pattern provides exceptional control and a flatter

The HEAD Sprint Pro 4

Colour: Celestine Blue

The Uniform Impact Grommet system increases string movement for a more even

Flashy colourway for the indoor athletes

Tecnifibre NRG2 - String Reel - Black weight-heavy Its tight 18x20 string patternThe NRG was designed with one specific goal in mind: to be the engine of your racquet! This is the primary purpose of the NRG, the most powerful string in the range. It features a unique construction of over 1200 microfilaments, made of Elastyl (12% more elastic than standard polyamide). Impregnated throughout with polyurethane 400 to generate power and comfort. And finally, the exclusive surface treatment: SPL, to provide smoothness and an effective