YONEX AEROSENSA 40 Badminton Shuttlecock is the preferred Shuttlecocks of international competitions because of their highly uniform distance stability under the different conditions of play. At the higher temperatures and altitude, a shuttlecock files faster. They are precision-manufactured to ensure the proper speed and temperature performance in different environments and a precision design that demonstrates a fast recovery and stable trajectory. Tournament grade goose feather shuttlecock.

BWF Approved and used in international tournaments all over the world. The precisely engineered technology in every lightweight YONEX Feather Shuttlecock is extensively checked and tested to guarantee consistent performance. YONEX Feather Shuttlecocks demonstrate accurate flight stability over distance under varying environmental conditions.

In factory testing, YONEX AS-40 and other brands in the same price range were machine fired downcourt under identical stroke and distance conditions. AS-40 demonstrated consistently stable flight performance in these tests-with 71 percent of the AS-30 shots hitting the target, compared with 58 percent and 17 percent for feather shuttlecocks of other make.