Used for matches and practice. *Some balls (1-5) may not be NEW OFFICIAL. *If the transaction (payment) is completed by 16:30 on January 8th, we will ship it the same day. I think they can still be used for knocking practice. 10 tubes with 120 balls, with tubes and boxes. You can use them not only for badminton, but also for baseball, golf, etc... for toss batting and swing practice. #Badminton #Baseball #Golf #YONEX #NEWOFFICIAL #KnockPractice #TossBatting #SwingPractice #Shuttlecock #Used 10 sets of YONEX official badminton shuttlecocks, perfect for competition. Thank you for viewing.