If you need an invoice, please communicate with customer service in the month the order is received. Brand: Guangyu/GUANGYU Fabric: Duck-neck fabric Ball Head: High-quality two-piece ball head Glue: High-quality nitrocellulose glue + premium resin glue Appearance: A Ball feel: A Durability: B+ Flight stability: A Point of impact accuracy: A Packaging: 12 pieces per pack Origin: Anhui, China Suitable for: High-intensity training, friendly matches, and players who have high requirements for the quality of badminton.