The rounded base of the shuttlecock; it can also be made of synthetic materials.
feather crown
Feathers or synthetic materials attached to the shuttlecock tip to stabilize it and make it aerodynamic.
synthetic shuttlecock
Small plastic cone that is sturdier than the feathered shuttlecock and is usually used for training; it weighs between 4.74 and 5.5 g, the same as the feathered shuttlecock.
