To Buyers: We are having trouble with many people not pressing the evaluation button after their package arrives. Please press the evaluation button. This is an original training frame tube. You can practice with it attached to the racket frame. It looks like it's not even there, so you can practice without anyone noticing. You cannot choose the color of the rubber ring. It is especially effective for strengthening drives and receives. You won't lose to pressure, and after removing it, it's light like a fan, increasing head speed, and allowing for a compact swing. It's effective for the students I teach, and they have won the junior high school district tournament, etc. Members of corporate teams also use it. The weight is 15g-20g, so it's tough at first, but you'll get used to it. I think it's very effective because of the weight on the head. Because it is handmade, the weight may vary, but please understand that it is handmade. Badminton Racket Training Tube Quantity | Total Price | Price per Item ------- | -------- | -------- 1 piece | ¥888 | 2 pieces | ¥1690 | ¥845 3 pieces | ¥2480 | ¥826 4 pieces | ¥3200 | ¥800 5 pieces | ¥3900 | ¥780 6 or more | ¥750 each 10 or more | ¥730 each 20 or more | ¥700 each Jr. Clubs, Elementary School Students, Junior High School Students, High School Students, University Students Adult Clubs, Corporate Teams, ◯◯ Clubs, etc. have purchased them. We have sold over 1000 units in total, including other sites. We will explain how to attach it on a separate sheet, so I cannot explain it here. You can buy it immediately. If you are considering purchasing multiple items, please let me know in the comments. YONEX Yonex Mizuno Wilson Prince Li-Ning Gosen Black Knight Apacs Badminton Shoes Shuttle Rackets Wear