YONEX New Official 1 dozen x 10 Type...Shuttlecock Used for basic practice. Can be used for knock practice. Some can be used for basic practice, There are no more than one broken feather, but please understand that there may be oversights. ☆☆☆ Since we are an adult group, we haven't used them for knock practice, so they are relatively clean. ☆☆☆ I have only made purchases on Mercari, but I have decided to sell shuttlecocks with my badminton friends. This is just my personal opinion, but I am committed to honest transactions. Thank you for your consideration. Shipping will be done using the safe and secure Mercari shipping service.