These are knock shuttles for badminton. I have gathered the lower quality ones from the knock shuttles I usually sell. I recommend using them for toss batting practice in the baseball club. Although it is not impossible to use them for badminton knock practice, many of them have feathers that are likely to break quickly when used for knocking. There are various types of shuttles. I am selling them at a low price, so I cannot offer a discount. I will ship them in a cardboard box. How about using them for batting practice at home or in the park, or for club activities? If you use them for badminton, you can use them for smash practice near the net, throwing them by hand. Please feel free to comment if you have any questions.