ODAMP VIBRATION DAMPENER
Made popular by Pete Sampras. The center hole minimises resistance to air when the racket is swung. One of the best string dampeners available. Will work on any racket.
The ODamp Vibration Dampener is a favourite choice to most, and to some is actually considered the only dampener worth using. Simply apply the Vibration Dampener to the strings by fitting it between the two center vertical strings, and then push it up into the first horizontal string. This maximises the amount of vibration the dampener reduces.
Less Vibration sent down the arm, means less vibration sent through your muscles and tendons, leading up towards your elbow. In effect reducing the chance of you getting Tennis Elbow.