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 - Made from polyester material, this baseball hitting trainer is durable for use. - You can also share this baseball hitting trainer with your family and friends. - Anyone will highly appreciate this baseball hitting trainer as this band is a perfect tool to improve their skills. - Promote the correct swing posture by setting the correct elbow position, improve the swing posture to increase distance and improve the accuracy. - This band is a simple and effective baseball hitting trainer, made of polyester, elastic and portable. Package list: 1 x Baseball Hitting Trainer