Gamma Shockbuster Vibration Dampener (1pc), various colors is the original snake-shaped dampener developed with patented Zorbicon gel. This advanced gel effectively eliminates harmful vibrations during play. The dampener fits securely onto racket strings, and its unique design absorbs vibrations across nearly all vertical strings. Always check for the Shockbuster and Zorbicon trademarks on the packaging to ensure you are purchasing the authentic U.S.-designed product.