ltem description from the seller
Brand: Guangyu/GUANGYU
Feather: Medium Coarse Duck Feather
Ball Head: Premium Two-Piece Ball Head
Glue: High-quality Nitrocellulose Glue + Advanced Resin Glue
Appearance: A
Ball feel: A
Durability: B+
Flight Stability: A
Accuracy of Placement: A
Packaging: 12 pieces per pack
Place of Origin: Anhui, China
Suitable for: High-intensity training, friendly matches, and badminton enthusiasts who demand high-quality shuttlecocks.