Weighted Bat Jacket Set (9oz, 12oz & 16oz)

This baseball Hitting Jack-It� training system features a series of three weights that fit over your bat; start with the lightest and work your way up! They're designed to increase bat speed and help you develop strength and power during live batting practice. The system also promotes proper swing mechanics and discourages casting. Features Helps you develop strength and power when practicing off tees For use during live batting practice Provides instant results Increases ball exit velocity Promotes proper swing mechanics Discourages casting Can be used with any baseball bat System includes 9 oz (increases speed), 12 oz (increases strength), and 16 oz (increases power) weights 1-year manufacturer's warranty

• Easy to Use; Quickly develops bat speed and power
• Sold in pack of 3 with sizes 9, 12, 16 oz.
• Increases Ball Exit Speed
• Gives you more confidence as a hitter
• Strengthens hand and forearms
• Current MLB Head Coach Clint Hurdle, Manager of the 2011 Pittsburg Pirates, fully endorse the Hitting Jack-It Weighted System, for building strength and bat speed.
• The Hitting Jack-it is a complete hitting training system that comes in four sizes to assist progressive training.
• The product works with all baseball and softball bats allowing players to develop during live batting practice sessions and off hitting tees.