Karakal Black Zone 20 Badminton Racket 82g Isometric Power Head Flex Frame The Black Zone 20 is an excellent choice for players looking for a higher level of control. The parallel beam frame provides greater flexibility and 7.3mm shaft allows the shuttle to hold on the strings for a fraction of a second longer giving you more precise and powerful returns. A great choice of racket for the improving player wishing to hone their game. The theory behind these frames was to provide a badminton frame to suit any need , each of the 4 frames has a slightly different frame design giving them all a different feel. We kept the colours simple by using black satin finish on all the frames but adding splashes of bright colours to give each racket an individual identity. All frames use an Isometric head shape. Product Features 82gram Frame Weight Graphite Construction 290mm Balance Point 22/22 String Pattern 7.3mm Shaft Width Parallel Beam Frame Model KB18506