The SKLZ Bat Weight Training Warmup is designed for baseball and softball players of all ages. This 12-ounce weight trainer, in a stylish blue color, is perfect for enhancing your batting skills both indoors and outdoors. The SKLZ brand ensures quality and durability, making this trainer a must-have for any player looking to improve their game. With its weighted design and compatibility with both softball and baseball, this training aid is the ideal accessory for any practice session or game.