This high-capacity automatic feeder works with all Rawlings Pro Line two-wheel pitching machines. The turret design holds more balls in a smaller space than any other system. Balls may be laced or dimpled, but must be regulation size. Release interval is fixed at 5 seconds. A wireless on/off remote control is included with all automatic feeders. The Rawlings exclusive interchangeable turrets, legs, and ball ramps allow the same base mechanism to be used with baseballs and softballs.