Yonex ISOMETRIC LITE2_WHTTRQ White, Blue Strung Badminton Racquet(G4 - 3.25 Inches, 85 g), Blue;white

The isometric equalizes the length of the main and cross strings in the string-bed, enlarging the sweet spot for more consistent accuracy even on off-center hits. Aero frame decreases air resistance and realizes a quicker swing