尺寸：球直徑20cm，繩長150cm
1.促進手、眼、腳的動作協調發展。
2.大人、小孩皆適合使用。
3.繩子繫於腰間，一人即可玩球，並省卻撿球時間。

Dimension: diameter = 20 cm,rope length= 150 cm
Detail Description :
The To & Fro Ball is designed for everyone to promote hand-eye coordination. The rope is tied around the waist to save time in retrieving runaway balls.