The first dynamic system which makes the frame and the strings interact when striking the ball.
In a standard tennis racquet, the frame is more or less static, and the strings are the main providers of power. Traditional grommet systems only allow some of the strings to actively participate in propelling the ball, meaning that the racquet does not work at its full potential. Babolat set out to design a racquet optimizing the frame and the strings - allowing all the strings to work together to their full potential when striking the ball.
By drilling each string hole in the frame at the optimum angle, Woofer grommets effectively eliminate string “lock-up”: the strings are free to move with much less friction, increasing power and feel. The “Pulley Function” enables more of the string bed to react when the player strikes the ball, increasing sweet spot size, improving forgiveness during off-center shots and absorbing unwanted vibration.
The ”Piston Function” of Woofer grommets allow for greater string deformation on impact, and a larger “trampoline effect” for 10% more power than other racquets. Dwell time is increased by 25%, allowing for improved shock absorption vs. traditional grommets.