756 used badminton shuttlecocks. I organized them during the year-end cleaning. These shuttlecocks have been used by elementary and junior high school students for practice, going through games ⇒ basic practice ⇒ knocking, so they are not in good condition. Various manufacturers are mixed. The main manufacturers are Yonex, Li-Ning, Material Crew, and Sunfast, and there are also various other unknown manufacturers. Hybrid shuttlecocks and carbon shuttlecocks are not included. Mainly #3 and #4 shuttlecocks are included, but these used shuttlecocks are mostly broken and may fly too far for racket knocking, regardless of the number. They are suitable for hand-tossed knocking or practice where you repeatedly hit them on the floor. Since there are 756 shuttlecocks, purchases for knocking purposes other than badminton are also welcome! Thank you.