For the player that doesn't like that ping sound at impact, the Volkl VibraStop Tennis Dampener is now available in various colors. Containing two oval shaped dampeners, these will help lower the vibration of the strings for a solid sound at impact. One of our favorite dampeners for staying put, the VibraStop dampener may look small but it makes a big difference. Colors: Black/Silver, Black/Yellow, Neon Yellow/Black and Lava/Black