Yonex B-Series B-4000 (Blue) Pre-strung

B-Series B 4000 (Pre-Strung) B-Series B 4000 is aimed at the beginner player. Lightweight and easy to use, it is the ideal first racquet.  Please noted that manufacturer's warranty will not apply for Yonex B-Series Badminton Rackets. PRODUCT DESCRIPTION   Original YONEX US Version Grip Size: G4  Weight: U (105g and below) Color: Blue Yonex String Recommendation:  U(105g or below) 16-20lb Frame: Aluminium Shaft: Steel Cover: Yonex Head Cover     PRODUCT TECHNOLOGY Isometric™ The square-shaped ISOMETRIC frame shape is designed to keep vertical strings at a similar length, as well as the horizontal strings to produce an expanded sweet spot in all directions.