Description When many baseball beginners learn to swing, they often can not handle the swing situation, thereby mostly they can not hit the ball, or the hitting effect is not good. This baseball swing training arm band can discover mistake, so as to keep the right posture all the time, therefore to form effective and desired hitting. Features -Color:Black -Material:Polyester -Size:24.00X3.80X0.10cm/9.43X1.49X0.04in -This elastic band can keep your arms in synchronization throughout the baseball hitting trainer, convenient to use. -And this hitting trainer aid as this band is the perfect tool to improve your hitting skills. -With this band, you can train your arm posture when you practice the baseball, correcting your wrong posture and improve your skills. -With double hole design, can fix your left and right arm at the same time, much convenient. -Help correct posture to swing with ease. This band can help you with a quite good distance and direction control. This elastic band can keep your arms in synchronization throughout the baseball hitting trainer, convenient to use. And this hitting trainer aid as this band is the perfect tool to improve your hitting skills. With this band, you can train your arm posture when you practice the baseball, correcting your wrong posture and improve your skills. With double hole design, can fix your left and right arm at the same time, much convenient. Help correct posture to swing with ease. This band can help you with a quite good distance and direction control.