The Black Knight's Magnum models feature the largest head size in high performance badminton racquets – 10% more than a standard racquet, and 5% more than other large head racquets. The Black Knight (BK) Magnum badminton rackets are engineered for the maximum benefits of the large string surface: lots of power and phenomenal control on defense for novice to intermediate players.

There have never been rackets before like the new Black Knight (BK) Magnum models. Light and aerodynamic yet featuring all the benefits of a large hitting surface:
- Larger sweet spot for better contact with the shuttle
- Larger area turns frame hits or misses on smaller racquets into solid returns
- Dynamic string bed returns more energy to the shuttle through the trampoline effect

The Black Knight (BK) Magnum 40 XL badminton racket is light for a faster reaction time than the Magnum 20. The 68cm length translates into more power as needed, longer and higher reach, and sharper angle shots.