The Teaching and Developmental Tool for a Great Hitting Motion. Improve Batting Averages, Learn Proper Hitting Mechanics with this Compact, Safety Designed, Lightweight, Portable Device. Correct Overstriding, Stepping in the Bucket, Improper Weight Shift, and Dragging of the Back Foot. Develop Individual Stride Length, Proper Hip and Shoulder Rotation, Resulting in a Quicker Swing and Better Tracking of the Thrown Ball. This is Not a Toy. Adult Supervision is Required.