Made of good quality duck feathers, treated with special formula, smooth and soft, resistant to hitting, not easy to break, enduring for long life time.The feather hair straight and thick, good strength, enhance the badminton resistance.Great for badminton games. Economical shuttlecocks for beginners and amateurs.The ball head adopts advanced cork technology, and the sound of hitting the ball is very crisp, which is beneficial to stimulate the players to enter the competitive state quickly.Strong adhesive glue makes the frame sturdy and ensure the feather and head not easy to crack, enables fast volleys and ensures flight consistency.Premium material and sturdy structure provide a continuously bounce and make the ball more durable to play.