The new HEAD PRO DAMP makes hitting the ball comfortable. Thanks to its soft silicone material, the dampener considerably reduces harmful vibrations, providing a comfortable hitting feeling. Brand: Head. Soft material increases comfort while playing. Length: 40 ft. / 12.2 m. Diameter: 1.30 mm. The Pro Damp racket dampener from HEAD is suitable for any racket type. It enhances comfort by eliminating vibrations caused by ball impact. Additionally, it reduces the sound made when hitting the ball. The dampener should be placed in the middle, on the lower width of your racket.