Shipping-cod free ナイガイゴム new official softball ball A No. 1 dozen pieces
From 0/2006 Convention used for General, (goods) Japan Softball Baseball League official ball.
Weight: 136 ± 1.8 g diameter: 72 ± 0.5 mm
Compared with conventional ball distance is approximately 10% up and fly straight into the
First bounce is higher, after the first bounce is lower,
Properties such as change of ball.