Little League approved , non-electric pitching machine features superior consistency and strike zone accuracy. Players train safely! Throws any type or style of ball up to 45 MPH with no adjustment needed. Great for batting practice and fielding exercises. Throws fly balls, line drives and grounders. Speed and locations can easily be adjusted. Lightweight and portable can be used for all ages and skill levels. Priced per single unit. Check out our great price on the Louisville Slugger Portable Protective Screen . What a great compliment to this machine. For replacement springs, see item 03097 .