The B'Fly 23, which is lighter, easier to handle and more forgiving. Your future champion will love using this racquet with a fun, colourful design! To make learning to play even easier and help kids master tennis basics, we've added teaching tools to the racquet. It's no coincidence that the B'Fly is recommended by 6000 coaches worldwide. The B'Fly 23 is designed for players who are 125 to 135 cm tall.