For sale is a Martin Sports Umpire Indicator for baseball or softball. This indicator is a 4 wheel indicator that can count Balls, Strikes, Outs, and Innings. This clicker is simple to use especially if you are an umpire you need this. The listing is for a pair of clickers. If you have any questions don't hesitate to message me. I require payment within 24 hours after committing to purchase.