Butterfly Andrzej Grubba Blade with Sriver EL 2.1 Rubbers Pro-Line Table Tennis Racket The Andrzej Grubba blade has been a long time best-seller The most distinguishing feature of the blade is its high level of control Sriver-EL is an all-round rubber with a fine a blend of speed and spin This racket can produce a wide variety of attacking shots with precise placement Speed = 75Spin = 80Control = 100