Strauss Smash Hit-22 Nylon Shuttlecock (Pack of 6) | Stable Flight, Fast Recovery & Near Feather Shuttle Performance | Medium Speed, Durable & Less Frequent Replacement (Yellow) ✔ Feather Material: Nylon Feather. Nylon feathers offer durability after repeated hits over the net ✔ Cork Material: Composite Cork. Good elasticity, good hitting and durability, not easy to crack, to provide stability in flight. ✔ Speed: Medium-speed. Strauss shuttlecocks help you build hand-eye coordination. The ball head is a little bit heavy, so the speed is faster. ✔ Suitable for Family Fun, Training, Leisure and Entertainment. You can play them with your families, friends or classmates to not only exercise your bodies but also promote friendship among you. ✔ Box content: Pack of 6 shuttlecock.