Baseball Training Aid Bands: You will receive 3 pieces/sets of impact training bands, including hand bands, bracelets and rubber bands for key area training. Flexible design is suitable for baseball/softball players of most ages.Durable Material: Our baseball impact training bands are made of high-quality rubber bands, and the resistance bands are TPE material, which is wear-resistant, elastic, tensile, not easy to break, durable, and can be used for a long time.Corrects Common Hitting Mistakes The perfect impact aid band allows you to reduce tumbling, promote a smooth hitting path, improve posture, and maintain a strong and correct hand position.Simple and Efficient - With instant feedback on swing mechanics, you can effectively improve arm muscle strength, improve posture, improve swing technique, and ultimately form accurate muscle memory.