The patented Hitting Jack-It is the first and only weighted system to allow players to develop hitting power with resistance training while using their real bat. The patent pending design is placed around the handle of the bat allowing players to develop during live batting practice sessions and off hitting tees. Hitting Jack-It can be used with all baseball and softball bats enabling players to develop while hitting live pitchers or off tees.
Regular batting donut weights put all of the bat's weight on the barrel which can cause "casting" of the hands and poor swing mechanics. The Hitting Jack-It's unique design keeps the hands from casting while building bat speed, and force the hands to work properly creating improved swing mechanics. Many professional baseball players such as Evan Longoria, Tampa Bay Rays third baseman and Dustin Pedroia, Boston Red Sox second baseman rely on the Hitting Jack-It to build strength and power in their swing.
The Hitting Jack-It is easily installed and removed by sliding the open slot of the jack onto the handle of the bat with the "wide end" facing up toward the barrel. Then slide the jack up the bat until snug, turn over and tap the bat on the ground firmly securing the jack in place. For safety purposes the open slot should always face the catcher and the closed side with the logo should always face the pitcher. For best results, remove the jack after 10 to 15 live batting practice swings working on driving the ball up the middle.