Regular price: ¥3740 Recommended for training in track and field events such as javelin throw, other throwing events, and introducing TurboJav, as well as for sports tests and physical education classes. This is a Javelin Ball adopted for the "32nd National Elementary School Track and Field Exchange Meet Javelin Ball Throwing" event. It aims to develop throwing motions using the whole body by moving the arms and shoulder blades widely and throwing the oval-shaped ball. It is expected to improve "throwing power." The faster the throwing speed, the louder the whistle sound, allowing for both attention to the throwing direction and enjoyment of throwing. Size: (Total length) approx. 320mm, (Tip diameter) (φ) approx. 87mm, (Ball part length) approx. 160mm Weight: approx. 140g Material: (Ball part) Foamed polyurethane, (Whistle) ABS, (Joint part) EVA, (Feather) LDPE Recommended for training in track and field events such as javelin throw, other throwing events, and introducing TurboJav, as well as for sports tests and physical education classes. This is a Javelin Ball adopted for the "32nd National Elementary School Track and Field Exchange Meet Javelin Ball Throwing" event. It aims to develop throwing motions using the whole body by moving the arms and shoulder blades widely and throwing the oval-shaped ball. It is expected to improve "throwing power." The faster the throwing speed, the louder the whistle sound, allowing for both attention to the throwing direction and enjoyment of throwing. Size: (Total length) approx. 320mm, (Tip diameter) (φ) approx. 87mm, (Ball part length) approx. 160mm, Weight: approx. 140g #sports #trackandfield #javelinthrow #baseball #training #pitching #practice