Osavi Osavi Tennis Racket Vibration Dampener

The Osavi Tennis Racket Vibration Dampener is a small tennis accessory from Osavi. A vibration dampener is fitted to the strings of a racket to reduce the vibration felt when the ball is struck.

It is a sports accessory, not a food supplement, and suits players who like to use a dampener on their racket for practice or matches.