The Li-Ning Shuttle-Attack(ym) shuttlecocks are designed for medium speed, making them ideal for normal training conditions. With a synthetic cork head ensuring accurate flight time, these shuttlecocks are best suited for training sessions. The skirts are crafted with precision to provide excellent durability and optimal flight performance. Specifically engineered for precise smashing, these shuttlecocks are made from high-quality nylon for extreme durability. Each box contains 6 shuttlecocks.