Senston 27" Tennis Racket Professional Tennis Racquet Good Control Grip Strung with Cover Tennis Overgrip Vibration Damper Material: carbon fiber and the racket weight: 0.6 - 0.64 (lb) Including:1 Racket / 1 racket cover bag /1 Overgrip +1 Racket Vibration Dampeners (Random Color) Tennis racket balance point: head heavy (baseline / technical) .String tension:50LBS-55LBS, the highest string:60LBS Tennis Racket Grip size: 4 1/4 ( If you have diffferent need about the grip size , you can use the overgrip to adjust.) Racket frame thickness: 21mm-28mm Suggestion: with the attached grip use together, reach to the a better feel