Used by elementary school students in the lower grades. It was said that this practice helped them focus on the line and improved their hitting feel. "Product Information" Cork diameter 2.5cm, height 6cm ◆【Batting-Specific Shuttlecock】 The Fast Shuttle is a batting shuttlecock specifically designed for batting practice. It is not a badminton shuttlecock. It solves problems such as the difficulty of finding a place to practice. Toss batting is suitable for indoor practice. Also, unlike badminton shuttlecocks, it has less feather resistance, so it can be thrown in a straight line, allowing for more practical practice. Famous professional baseball players also practiced shuttlecock batting from childhood. Weight of one shuttlecock: approximately 5g Feathers: Nylon Cork part: EVA material