Feature

●9 inch full-blown ball fits better than bigger size
●Improves body rotation efficiency and accelerates batting speed
●Modifies pitching posture and addresses forearm flyout
●Avoid possible arm pain due to wrong posture
●Includes air pump, straw and two plugs


Description

The 9-inch connection ball will help you improve body rotation efficiency and batting speed. Furthermore, the connection ball drill can also modify your pitching posture, address forearm flyout and avoid possible arm pain from wrong posture