Karakal 150 FF Racketball RacketKarakal FF 150 Racketball SQ57 Racket. This is the lightest of the new frames which encourages faster swing strokes and more manoeuvrability on the court. The lighter frame allows you achieve faster racket head speeds resulting in more speed and power in your shots. 150gm Frame weight 100% Fast Fibre Nano gel 1 Piece Construction Constant Taper Midplus head Full Cover Wrist Strap