Thank you for viewing. These are the shuttlecocks used for knocking practice. They're increasing, so I'm offering them for sale. Perfect for self-practice, baseball, softball batting practice, or as materials for handicrafts. Some of the shuttlecocks might be suitable for basic practice, but they were primarily used for knocking, so please consider this when purchasing. 80% are YONEX, and 20% are from other manufacturers. There are no plastic or hybrid shuttlecocks.