Boost your bat speed and power with the Rawlings 9oz Hitting Jack-It Bat Weight. Designed for both baseball and softball, this 9-ounce, rubber-coated training tool features a unique, open-back cuff that fits securely where the handle meets the barrel. Unlike traditional donuts, the Hitting Jack-It is safe for live batting practice, allowing for seamless training on the field or in the cage. Ideal for players aged 8 and up looking to enhance their swing mechanics and build hitting strength.