Talbot isoforce 4113 badminton racket the talbot isoforce 4113 badminton racket has been crafted with a mega power zone that features ten larger grommet holes that create a mega power zone that allows the strings to to sing more freely resulting in a higher rebound effect along with power wave and power bridges technology that help to reduce strain on the string and allows more flex completed with air flex technology an a flex shaft system that allows more power to be generated badmi