1. Approved by the Badminton World Federation (BWF) for International Tournament 2. Selected Premium white goose feathers 3. Superior Durability 4. Excellent Flight 5. Official shuttlecock for the Swiss Open Super Series badminton tournament.
Recommendation: To prolong the durability of the shuttlecocks, we highly recommend that all shuttlecocks be humidified 24-48 hours before usage. This will help increase the life/durability of the shuttlecock by up to 70%. Please check http://www.shuttlecock.com/Resources/Shuttlecock/hydrate.php for tips on hydrating shuttlecocks.