You will receive (6) Softball Sized 12" Whiffle Balls by Whiffle in a Countertop Display. . More info about Softball Sized Whiffle Balls: Made with the same "Rubbery Plastic" but without the holes. For pitching machines, Bike Polo and other games where you dont want the ball to curve. These balls are more lively and will travel further than the traditional ball. 12 inch regulation size softball. Hollow Plastic Ball for Indoor and Outdoor Use Ideal For Use in Pitching Machines All Purpose Play Ball For All Ages