The Gamma Shockbuster is the original worm shaped vibration dampener with Zorbicon for maximum vibration dampening. GAMMA original Shockbuster contacts the critical main strings and dampens out vibration with its patented Zorbicon filled design.
I've used this damper for years. this is by far the best damper out there. It stays in place.
On the cords of every raquet I use.\nI would recommend to my tennis mates.\nExcelelnt quality.