Yesterday on a court I found what appears to be a dampener with the Head logo on it. It is light brown and has four holes through it which appear to be where 4 of the main strings would be threaded when the racquet is strung. Consequently this dampener would only be able to be installed when the racquet is being strung and would not be able to be removed without removing the strings. Is this thing actually a dampener or something else? I searched for Head dampener on google, amazon, and TW and couldn't find anything for sale which looked remotely close to this so I'm not really sure that what I found actually is a dampener.