Yonex Aerosensa 30 (AS-30) Tournament Feather Shuttlecock YONEX Aerosensa 30 Feather Shuttlecocks are precision-manufactured to ensure the correct speed, distance and stability performance. YONEX AEROSENSA shuttlecocks are the official shuttlecock for the world’s leading international tournaments. The precisely engineered technology in every lightweight YONEX feather shuttlecock is extensively checked and tested to guarantee consistent performance. These high standards are the reason that YONEX Feather shuttlecocks are the official choice of the London 2012 Olympic Games. Used in tournaments including Thomas & Uber Cup Finals, BWF World Junior Championships Badminton Asia Championships and YONEX All England Open Badminton Championships. Item Code: AS-30 Materials: 100% solid cork, goose feathers