Apacs Zig Zag Speed III Orange Badminton Racket (4U) Isometric head frame - Equalizes the length of main and cross strings in the stringbed, enlarging the sweet-spot for more consistent accuracy even on off-center hits. Compact Frame - Provides fast swing and head-heavy balance. The frame has been made smaller to maintain the fast swing demanded by advanced players. By reducing the drag caused by air resistance, the head-heavy feeling is reduced and racquet handling speed is increased. Carbon Nanotube - The Carbon Nanotube is adopted in both sides of the frame in order to give strength and perseverance. It holds large amount of energy at the impact, and releases it back like an arrow. It gives you depth and control in your game. Whip-Slim Frame - The Whip-Slim Frame provides smaller flat surface compared with an ordinary racket for better speed, fast swing-through and the quicker maneuverability.