Thank you for viewing. I am selling 110 used badminton shuttlecocks. The manufacturers are mixed, mainly Yonex AS500-700 and RSL First Step. Other brands like Yonex New Official are also included. I wrote "for knocking practice," but there are also some shuttlecocks that seem usable for smashes and pattern practice, which are more demanding. I believe the buyer can use them for various purposes based on their own judgment, so please consider purchasing them.