Karakal Black Zone 50 Badminton Racket Fast Fibre Titanium Gel Power Head Frame The Karakal Black Zone 50 has an isometric square head shape that increases the sweet spot, and makes it aerodynamic creating fast head speeds, this combination of power and speed make an excellent all round racket. The 7mm shaft diameter allows the racket to flex and the wider beam width at the T joint gives the head added stability. Using our Fast Fibre Ti Gel construction the frame returns to shape 10% faster after a shuttle strike allowing you to create even more power for less effort. Product Features 83gram Frame Weight Fast Fibre Ti Gel Construction 290mm Balance Point 22/22 String Pattern 7mm Shaft Width Constant Taper Frame Model KB18503