The Pow'r Wrap Baseball Bat Weight Sleeve Trainer is a durable and high-quality accessory designed for baseball players looking to enhance their batting skills. Made in the USA from recycled polycarbonate plastic, this sleeve offers a 4” diameter and a 21 oz weight for added resistance during training sessions. The blue color and sleek design make it a stylish addition to your baseball gear, while its outdoor use and adult age group recommendation cater to serious players looking to improve their game on the field. This weighted sleeve is perfect for players looking to hone their batting techniques in a realistic outdoor setting. Used condition, but in good shape.