A racquet vibration dampener with a new twin tube design; designed to contact more area of the main strings for increased dampening affect.

• Double Viscoelastic Zorbicon center absorbs (according to Gamma) twice the shock and vibration
• Caution: During installation, do not over-stretch Shockbuster II
• Available colours: Blue/Black, Green/Black, Orange/Black, Red/Black, White/Black, Yellow/Black, Yellow/Green.