The StanceCheck iZONE® is used by Major League Players and was created by Major League Coaches! - The StanceCheck iZONE® is a unique and innovative baseball and softball vision training aid that is changing the way people view and approach hitting. - We at StanceCheck believe seeing the ball with both eyes is a major factor in being a successful hitter. - The iZONE® vision training aid is a revolutionary product that is simple to use and benefits any type of hitter, from beginners developing the proper stance, to professionals looking to enhance their current stance. Jorge Polanco of the Seattle Mariners (2019 MLB American League All-Star Starting Shortstop) taking batting practice with the StanceCheck iZONE® vision training aid! Jorge Polanco is a switch hitter. He trains with the StanceCheck iZONE® to make sure his eyes are pre-set and in line with the pitcher from both sides of the plate! Why Use The StanceCheck iZONE® Vision Training Aid? - iZONE®, with its specially designed nose-piece, will train your stance to have your head and eyes in line with the pitcher. When both eyes are in line with the pitcher/release point or your visual target the nose piece will disappear from your sight. Having both eyes lined up will improve your ability to detect velocity and see spin. - The first time hitters use iZONE® they will realize that in their current stance both eyes are not being used to track the ball. - Most hitters often use a stance with their head turned in a way that prevents them from using their back eye to see the pitcher’s release point. - The iZONE’s® precise design gives instant feedback and trains you to get your head and both eyes in the best position to see the ball, detect velocity and pick up spin sooner! Checking Your Stance With The StanceCheck iZONE®! Put on the iZONE® like you would eyeglasses, and rest the nose-piece firmly on the top of the bridge of your nose. Get in your batting stance. While in your batting stance, close your lead eye (eye closest to pitcher). Adjust your head so you can see the pitcher's release point with your back eye. When the pitcher's release point is visible with just your back eye open, then open your lead eye. The pitcher should now be visible with both eyes. Your Stance is now in Check! NOTE: The StanceCheck iZONE® is not intended for use during game situations. It is intended for training purposes only. *The StanceCheck iZONE® vision training aid is proudly made in the U.S.A.!