Sporting Devices and Structures Having Dynamic Visual Indicia

摘要

An on-field vision training system is disclosed that provides a visual identifier near the athlete during game play and training exercises and other visual identifier positioned away from the athlete, but so as to still be seen by the athlete during game play and training exercises. The athlete uses the visual identifiers during game play and training exercises to improve vision, focus, and concentration. An American football having unique visual identifiers for use as an in-flight visual training tool is also disclosed.