Prince thunder cloud tennis racket the prince thunder cloud tennis racket features a morph beam construction to provide great stability and power the extreme string pattern allows for up to 30 more spin whilst the triple threat technology allows for increased power control and will improve your game no ends adults racket frame weight 250g balance 335 mm beam width 28 24 mm length 27 inches string pattern 14 x 17 power level 1100 composite graphit