★ Over 200 units sold, with "likes!" from purchasers. The product quality is assured. Please be aware of cheap, inferior imitations. ・ Brand new, unused, free shipping ・ 【Authentic High Quality】 Javelin Ball (single item) ・ Officially used in junior high school track and field competitions such as the Junior Olympics. Also suitable for javelin throw practice (javelin throw). ・ Can be used for training in throwing javelin, checking baseball/softball pitching form, and practicing throwing in all other sports. Since you throw using your whole body, it is also suitable for full-body muscle, core, and balance training. ・ With this javelin ball, children can learn the correct way to throw a ball and form while playing. Shaped like a bow and arrow, it's enjoyable for children and adults alike. Use it for catch in the park with your family. ・ The polyurethane rocket-shaped ball is lightweight and safe, allowing children to practice pitching in baseball, softball, etc., while playing. ・ To throw straight, the steps leading up to the throw, weight transfer, arm swing, wrist snap, and posture all work together, so it helps to practice and improve your throwing form.